Wszystkie pola: treatment process - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of Bakery Sewage Treatment Process Options Based on COD Fraction Changes
Autorzy:: Struk-Sokolowska, J.
Tkaczuk, J.
Powiązania:: https://bibliotekanauki.pl/articles/125274.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater
municipal
bakery
food industry
COD fractions
activated sludge process
Opis:: Municipal WWTPs often receive industrial wastewater including the bakery sewage. The effluent of the bakery industry has a high biological oxygen demand (BOD). In addition to high BOD, this wastewater contains high chemical oxygen demand (COD), total Kjeldahl nitrogen (TKN) and is characterized by a dark color. The effect of bakery wastewater contribution on the COD fraction changes in the municipal sewage is presented in this paper. The study was conducted in July 2016 in a WWTP located in Lipsk, East-North Poland. The sewage receiver is the Biebrza River. The volume contribution of bakery wastewater is 10%. The analytical results were used to compute the percentage value contribution of individual COD fractions in wastewater. During the study, the following fractions were identified: S_S – COD of readily-biodegradable dissolved organic matter, S_I – COD of non-biodegradable dissolved organic matter, X_S – COD of slowly-biodegradable non-soluble organic matter, X_I – COD of non-biodegradable non-soluble organic matter. The method used for the COD fraction determination in wastewater was developed based on the ATV 131P guidelines (ATV-DVWK-A131P). The aim of the study was to determine the effect of bakery wastewater contribution on the COD fraction changes during the technical scale biological wastewater treatment with an activated-sludge process. The percentage contributions of individual COD fractions in wastewater were compared with the shares in the wastewater from other food industries (dairy, olive mill, tomato, sugar beet, potato processing, winery). In raw wastewater, the X_S fraction was dominant 44.2%. S_S fraction was 38.8%. In raw wastewater, the S_I, X_I fractions ranged from 2.3 to 14.8%. In the effluent the S_S fraction was not noted, which is indicative of microorganisms consumption. The WWTP effluents mostly (43.4%) contained slowly-biodegradable non-soluble organic matter (X_S). Non-biodegradable dissolved organic matter (S_I fraction) had a high share of 42.3%.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 226-235
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Studies on the Efficiency of Grundwater Treatment Process With Adsorption on Activated Alumina
Autorzy:: Szatyłowicz, E.
Skoczko, I.
Powiązania:: https://bibliotekanauki.pl/articles/123695.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: activated alumina
water treatment
adsorption
popular pollutants
Opis:: One of inorganic sorbents used in water treatment technology is activated alumina. It is recommended by the European Commission to remove inorganic impurities, such as arsenic, fluoride, selenium and silicates. The adsorbent is usually applied in a granular form, under flow conditions. It can become absorbent material, increasingly used due to the presence of arsenic beside iron and manganese in groundwater intakes. The aim of the study was to evaluate the effectiveness of groundwater treatment in the technological system containing adsorption on activated alumina. The experiment was performed on test model CE 581 manufactured by G.U.N.T. Hamburg, in which four treatment stages can be extracted. The first stage is used in a gravel filter of grain size 1–2 mm, in the second sand filter of grain size 0.4–0.8 mm. The third and fourth phase includes two adsorbers. The first adsorber comprises activated alumina (Al,sub>2O₃) and the other comprises a granular activated carbon. The study was conducted at different speeds of filtration: 5, 10 and 15 m/h. In the raw water samples and the purified water samples after each treatment step the following parameters were determined: pH, O,sub>2 concentration, electrolytic conductivity, SO₄^2-, concentration, NO^3- concentration, PO₄^3- concentration, Cl^- concentration, color, turbidity, iron and manganese concentration, CODMn, total hardness, calcium hardness, magnesium hardness, content of dissolved substances. The conducted research indicates that optimum filtration rate for most pollution is 15 m/h. Moreover, the presence of activated alumina has contributed to increasing the efficiency of nitrate (V) and phosphate (V) ions removal.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 211-218
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Intensification of the Wastewater Treatment Process of a Bitumen Plant with the Production of Recycled Water
Autorzy:: Serikbayeva, Akmaral
Taizhanova, Lyailim
Suleimenova, Botagoz
Altybayeva, Zhansaule
Seidalieva, Leila
Powiązania:: https://bibliotekanauki.pl/articles/2202366.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater treatment
bitumen
oil
plant
distillation
Opis:: The increasing demand for water with the industrialisation of the world is becoming a major problem as there is a water shortage all over the earth. Therefore, the water problem is one of the important problems that need to be effectively solved. This paper presents the results of research on wastewater treatment of bitumen production in the Mangystau region, which after physical and chemical treatment methods is sent to natural evaporation fields. As a result of research work, a method of wastewater treatment of bitumen plant was developed, which includes two stages: distillation of water on the solar plant and ozonation in order to oxidize volatile organic matter. Distillation to obtain primary treated water of 70–75% volume was carried out at 33–37 °C ambient temperature and 15–30 kPa rarefaction, at the same time COD of water was reduced by 68%.
Źródło:: Journal of Ecological Engineering; 2023, 24, 2; 295--301
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: Treatment of Surface Treatment Effluents by Electrocoagulation Process Using Aluminium Electrodes
Autorzy:: Namoussi, Soukaina
Merbouh, Chaimaa
Kabriti, Mohamed
Nahli, Abdelmottalib
Naamane, Ayoub
Chlaida, Mohamed
Iounes, Nadia
Powiązania:: https://bibliotekanauki.pl/articles/2025816.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: electrocoagulation
aluminium electrode
surface treatment
effluent
pollutant
Opis:: The surface treatment industry generates effluents with a high load of highly toxic chemicals which must be treated under increasingly stringent regulation. The aim of this study was to treat the effluents of surface treatment unit of an aeronautical industry by the electrocoagulation process using aluminium electrodes. This process is used to study the performance to remove colloidal load, significant amount of oxidizable material and high levels of various metal elements (Cr, Fe, Zn, Cu and Al) from these effluents, under optimum conditions of pH 7, 8.6A of current intensity and 60 min of application. The electrocoagulation process was found to be effective in reducing turbidity (97.12%), COD (97.5%), SS (97.84%) and conductivity (96.82%), hexavalent chromium (99.99%), Zn (96.82%), Cu (94.3%), Iron (99.9%), Al (91.96%). The treated effluent conformed to the Moroccan standards of surface treatment discharge.
Źródło:: Journal of Ecological Engineering; 2022, 23, 1; 91-99
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Zastosowanie procesu Fentona do oczyszczania ścieków garbarskich
Application of Fenton’s process for treatment of tannery wastewater
Autorzy:: Przywara, L.
Powiązania:: https://bibliotekanauki.pl/articles/401972.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: ścieki garbarskie
zanieczyszczenia organiczne
odczynnik Fentona
tannery wastewater
COD removal
Fenton's reagent
Opis:: W artykule omówiono badania, których celem było określenie efektywności oczyszczania ścieków garbarskich w procesie pogłębionego utleniania z zastosowaniem odczynnika Fentona. Proces przeprowadzono stosując różne dawki żelaza zmieniane w zakresie od 0,056 g Fe²⁺/dm³ do 0,56 g Fe²⁺/dm³, H₂O₂od 0,34 g/dm³ do 5,44 g/dm³ i w zakresie pH od 2,5 do 3,5. Ścieki scharakteryzowano wykonując oznaczenia podstawowych wskaźników fizyko-chemicznych (pH, przewodność, ChZT, chrom, azot amonowy). Badano także możliwość zastosowania procesu koagulacji przy użyciu koagulantu SAX 18. Efektywność procesu określono w oparciu o zmiany głównie wartości zanieczyszczeń organicznych określonych jako ChZT. Skuteczność procesu Fentona prowadzonego dla dawki Fe²⁺ na poziomie 0,56 g Fe²⁺/dm³i H₂O₂ 4,08 g/ dm³ wynosiła 80% zmniejszania ChZT w stosunku do ścieków surowych i była wyraźnie wyższa niż w przypadku procesu koagulacji.
The aim of this study was to treat of tannery wastewater with the chemical advanced oxidation using Fenton reagent. Advanced oxidation process was carried out using different doses of iron (Fe²⁺) changes from 0.056 g Fe²⁺/dm³to 0.56 g Fe²⁺/dm³and H₂O₂from 0.34 g/dm³ to 5.44 g/ dm³. The wastewater samples were characterized for the concentration of chemical oxygen demand (COD), chromium, ammonia and pH, conductivity. The possibility of using the coagulation process using SAX 18 was also investigated. The efficiency of the applied processes was monitored by change mainly of chemical oxygen demand (COD). The maximum COD removal was 80% for Fenton’s oxidation process at pH 3.0, Fe²⁺ (0.56 g Fe2+/ dm³) and H₂O₂ (4.08 g/ dm³) and significantly higher than in the case of the coagulation process.
Źródło:: Inżynieria Ekologiczna; 2017, 18, 2; 117-122
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Cactus and Holm Oak Acorn for Efficient Textile Wastewater Treatment by Coagulation-Flocculation Process Optimization Using Box-Benhken Design
Autorzy:: Adachi, Abderrazzak
Soujoud, Radouane
El Ouadrhiri, Faiçal
Tarik, Moubchir
Hmamou, Anouar
Eloutassi, Noureddine
Lahkimi, Amal
Powiązania:: https://bibliotekanauki.pl/articles/24202904.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: coagulation-flocculation
textile wastewater
response surface methodology
decolorization
cactus
holm oak acorn
Opis:: In this study, the effectiveness of using natural bio-coagulants and bio-flocculants to treat textile wastewater through the coagulation-flocculation method was examined. These bio-based agents have several advantages over chemical agents, including biodegradability, natural abundance, low toxicity, and low cost. A bio-coagulant (holm oak acorn (HOA)) and a bio-flocculant (cactus juice) were used to investigate the capacity for turbidity removal and decolorization of textile wastewater. The UV spectrophotometer was used to characterize the discharges before and after treatment, and the chemical oxygen demand (COD) and biological oxygen demand (BOD5) levels were calculated. Box-Behnken design (BBD) coupled with response surface methodology (RSM) were utilized to optimize the process and reduce turbidity and decolorization in textile wastewater. The obtained results show that under the optimal conditions (0.5 g•L-1 of HOA, 15 mL•L-1 of cactus juice, and a pH of 7), decolorization and turbidity removal were achieved at 69% and 90%, respectively. This study demonstrates the potential of using bio-coagulants and bio-flocculants in the treatment of textile wastewater.
Źródło:: Journal of Ecological Engineering; 2023, 24, 6; 315--328
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Evaluation of the Effectiveness of the Coagulation Process in the Treatment of Wastewater from the Foundry Industry
Autorzy:: Dawczak, Paulina
Dudziak, Mariusz
Powiązania:: https://bibliotekanauki.pl/articles/123257.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: foundry industry
wastewater treatment
coagulation
Opis:: The wastewater from the foundry industry contains both inorganic and organic pollutants. Their characteristic feature is the variability of the composition, which depends on the intensity of production in a given industrial plant or the combination of various pollutant streams. As part of the paper, the coagulation process was proposed for the treatment of selected wastewater from the foundry industry. The purpose of the research was to evaluate the effectiveness of coagulation depending on the concentration of pollutants in wastewater.
Źródło:: Journal of Ecological Engineering; 2019, 20, 6; 174-176
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Utilization of Chlorella vulgaris after the Extraction Process in Wastewater Treatment as a Biosorption Material for Ciprofloxacin Removal
Autorzy:: Al-Mashhadani, Enass S. M.
Al-Mashhadani, Mahmood K. H.
Powiązania:: https://bibliotekanauki.pl/articles/24201657.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: microalgae
Chlorella vulgaris
biomass
adsorption
wastewater treatment
ciprofloxacin
Opis:: Potentially negative environmental and human health effects have led to pharmaceutical chemicals,which are labeled as a new class of environmental contaminants. Adsorption is one of the most appealing choices to remove that pharmaceutical waste in recent years. However, the environmental limitations of the adsorbent material are an obstacle to the development of this process. The current study suggested the remaining Chlorella vulgaris biomass, after the extraction process of the biomaterials, to be a bio-absorption material in removing the Ciprofloxacin from the hospital wastewater. The preparation and characterization of the suggested adsorbent through FTIR analysis, and scanning electron microscopy, coupled with energy-dispersive X-ray spectroscopy and X-ray diffraction, were present in the current study. Several functional groups (such as carboxylic, amines, hydroxyls, and amides) were observed to aid the adsorption process. After the extraction process, the results showed a growth in the peaks, indicating an increase in functional groups, particularly the -O.H. and -N.H. groups, while having changed toward lower energy after binding with CIP atoms, as well as an increase in surface area from 2.3723 to 3.6224 m2/g. The XRD was shown to be compatible with the EDX test, which both demonstrated a decrease in carbon element concentration due to the deconstruction process. The effects of Ciprofloxacin bio-sorption variables, including contact time, initial Ciprofloxacin concentration, pH, and adsorbent dosage, were adopted as a parametric study. The maximum adsorption capacity was recorded at pH 7 with an adsorbent dose of 2.75 g/L; after 120 minutes, the data show that 89.9% of Ciprofloxacin has been adsorption onto the extracted biomass.
Źródło:: Journal of Ecological Engineering; 2023, 24, 4; 1--15
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Podczyszczanie ścieków z przemysłu drzewnego w procesie adsorpcji statycznej
Pre-treatment of wastewater in the process of static adsorption
Autorzy:: Juraszka, B.
Macek, D.
Powiązania:: https://bibliotekanauki.pl/articles/400280.pdf
Data publikacji:: 2011
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: adsorpcja statyczna
podczyszczanie ścieków przemysłowych
static adsorption
pre-treatment of wastewater
Opis:: Niniejsza praca zawiera wyniki oraz interpretację badań własnych podczyszczania ścieków z Zakładu Drewexim w procesie adsorpcji statycznej. Celem pracy było określenie optymalnych parametrów tj. czasu kontaktu ścieków z węglem aktywnym oraz masę węgla aktywnego w procesie podczyszczania ścieków w procesie adsorpcji na pylistym węglu aktywnym. Na podstawie badań własnych procesu adsorpcji statycznej na pylistym węglu aktywnym CWZ-22 największe zmniejszenie wartości stężeń wszystkich badanych wskaźników zanieczyszczeń - zawiesiny ogólnej, substancji rozpuszczonych oraz ogólnego węgla organicznego - uzyskano dla dawki węgla równej 100 g/dm3 i czasu trwania procesu 30 min. Stopień usunięcia zawiesiny ogólnej ZO w opisywanym przypadku wyniósł ponad 93%, substancji rozpuszczonych SR - 58%, OWO - ponad 97%. Zauważono zdecydowane zmniejszenie wartości stężeń badanych wskaźników zanieczyszczeń już przy najniższej zastosowanej dawce równej 25 g/dm3 ( stopień usunięcia ZO - 86%, SR - 46,5%, OWO - 93%). Przy stopniowym zwiększaniu dawki adsorbenta zmniejszenie wartości badanych wskaźników nie była już tak wyraźna. W dalszej części badań - wpływu czasu trwania procesu na stopień zmniejszenia wartości stężeń omawianych wskaźników - widoczne rezultaty uzyskano przy najkrótszym czasie - 10 min, przy czym najlepsze efekty uzyskano dla czasu równego 30 min (dawka pylistego węgla aktywnego stała = 100 g/dm3). Stopień usunięcia zawiesiny ogólnej - ponad 92%, substancji rozpuszczonych - 60%, OWO - blisko 98%. Analizując wyniki badań własnych można zauważyć, że zmniejszenie wartości stężenia OWO uzyskany dla pylistych węgli aktywnych jest o kilka procent wyższy od stężenia OWO uzyskanej przyzastosowaniu ziarnistych węgli aktywnych.
The paper presents results and interpretation of own research of pre-treatment of wastewater from Drewexim Company in the process of static adsorption. The aim of the research was to determine the most optimum conditions of static adsorption process and to determine sorptional capacity of dusty activated carbon. Results of research with application of activated carbon CWZ-22, show that the biggest reduction of examined parameters (total suspension ZO, dissolved substances DS and TOC) were obtained for activated carbon dose 100 g/dm3 and process duration 30 min. Degree of total suspension removal in this case was over 93%, dissolved substances - 58%, TOC - over 97%.Substantial reduction of concentration of examined parameters was noted already at the lowest applied dose 25 g/dm3 (degree of removal of ZO - 86%, SR - 46.5%, TOC - 93%). With progressively increasing doses of adsorbent reduction of concentration was no longer so substantial. Next stage of research - influence of time of process duration on the decrease of parameters - showed that the biggest decrease of parameters values was noted at the first applied contact time - 10min. The best results were obtained for the contact time 30 min (dose of dusty activated carbon = 100 g/dm3). Degree of ZO removal - over 92%, SR - 60%, TOC - almost 98%. Analysis of the results also shows that decrease of TOC concentration obtained for dusty activated carbon is a few percent bigger than the one obtained for granular activated carbon.
Źródło:: Inżynieria Ekologiczna; 2011, 24; 74-80
2081-139X
2392-0629
Pojawia się w:: Inżynieria Ekologiczna
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Elimination of Bisphenol A from Wastewater through Membrane Filtration Processes
Autorzy:: Dudziak, M.
Kudlek, E.
Łaskawiec, E.
Felis, E.
Kowalska, K.
Garbaczewski, L.
Powiązania:: https://bibliotekanauki.pl/articles/123664.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater treatment
bisphenol A
ultrafiltration
reverse osmosis
complex purification process
Opis:: New priorities for the environment have resulted in a reassessment of modern technology for treatment of urban wastewater. Urban wastewater treatment mainly involves the elimination or reduction of anthropogenic organic micropollutants in the aquatic environment. In this paper, the effectiveness of bisphenol A elimination from wastewater, after biological treatment, through a complex ultrafiltration/reverse osmosis purification process was evaluated. The effectiveness of the wastewater treatment process in the tested system was also evaluated with a number of other physical and chemical analyses for pH, turbidity, colour, absorbance, TOC, phenol index, conductivity and the concentration of selected heavy metals. Within this study, the change in the hydraulic performance of the membranes was also investigated. The effectiveness of the reduction of bisphenol A concentrations during the process of ultrafiltration was small, due to the significant difference between the size of the pores of the membrane and the size of eliminated micropollutants. In the process of reverse osmosis, the wastewater treatment system reported that the concentration of bisphenol A was reduced by 68%. In the tested treatment system, the ultrafiltration/reverse osmosis completely removed colour, lead and chromium. Other contaminants were eliminated by more than 31%. In both membrane processes, there was evidence that the membrane pores were blocked, but this occurred to a greater extent during the process of reverse osmosis.
Źródło:: Journal of Ecological Engineering; 2018, 19, 1; 69-74
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: The Application of Six Sigma for Process Control Analysis in the Malaysian Poultry Wastewater Treatment
Autorzy:: Ishak, Anuar Bin
Mohamad, Effendi Bin
Arep, Hambali Bin Arep
Powiązania:: https://bibliotekanauki.pl/articles/2086415.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: six sigma
wastewater treatment
poultry wastewater
statistical quality control
process capability
treatment reliability
Opis:: In this paper, the researchers presented the process control analysis of a Poultry Wastewater (PWW) treatment plant that was designed to comply with the Environmental Quality (Industrial Effluent) Regulations, 2009. In this pilot case study, the researchers highlighted the fact that owing to the existing global environmental challenges, a Six Sigma approach needs to be used for developing a new technique that helps in optimising process capability and assesses the treatment reliability. This would allow the effective treatment of different pollutants like pH, BOD5, TSS, COD, O&G and NH3-N before their discharge into the environment. The researchers used several quality control process tools like the I-MR control charts, treatment process capability analysis and treatment reliability assessment in the study. After analysing the data, the researchers concluded that the plant could effectively treat NH3-N, as well as fairly decrease the pH, BOD5, and COD values, whereas it displayed low ability in treating TSS and O&G within the research period. The researchers noted that the process showed low reliability in the treatment of TSS and O&G, i.e., 88.6% and 29.8% respectively, led to the discharge of fine colloids in the effluent. This was attributed to problematic processes in the PWW treatment procedure, such as malfunction of the DAF unit process, ineffective physical-chemical treatment, and tertiary filtration breakdown. The researchers concluded that this PWW plant required additional control and design improvement so that it released a low concentration of toxic compounds in the effluent discharge, and complied with the standards. This research could be used as a reference for additional studies that aimed to improve the quality of the wastewater treatment processes.
Źródło:: Journal of Ecological Engineering; 2022, 23, 5; 116--129
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: The Use of Biofiltration Process to Remove Organic Matter From Groundwater
Autorzy:: Papciak, D.
Kaleta, J.
Puszkarewicz, A.
Tchórzewska-Cieślak, B.
Powiązania:: https://bibliotekanauki.pl/articles/952351.pdf
Data publikacji:: 2016
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: groundwater
biofiltration process
total organic carbon (TOC)
water treatment
Opis:: The article describes the research on the removal of organic matter from natural underground water using biofiltration process. The study was carried out in semi-technical scale on a model filter composed of activated carbon WD-extra. The development of biological activity in a biosorption bed, as well as observations on the relationship between the processes of sorption and biodegradation was evaluated based on the Eberhardt, Madsen, Sontheimer (EMS) test. Leading operation control parameters of biologically active carbon filter BAF included: change of TOC content, dissolved oxygen and permanganate index. To evaluate the colonization of granular carbon determination of ATP value was used. The presence of the biofilm was found by observation using light and scanning microscopes. The organic compounds in the water taken were adsorbed 100% and 70% biodegradable. The combination of sorption process with biodegradation until depletion of activated carbon adsorption capacity allowed in the initial phase of coalbed work for the removal of organic matter in approx. 100%. Formation of biofilm at the right time allowed to extend the filtration cycle and helped lower the TOC by 70%, i.e. from 10 mg C/l to 3–4 mg C/l.
Źródło:: Journal of Ecological Engineering; 2016, 17, 3; 119-124
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Transformation of Traditional Wastewater Treatment Methods into Advanced Oxidation Processes and the Role of Ozonation
Autorzy:: Nikbeen, Tamana
Nayab, Ahmad Khalid
Powiązania:: https://bibliotekanauki.pl/articles/24201749.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: wastewater treatment
traditional oxidation method
ozonation
advanced oxidation process
disinfection by-product
micropollutants
Opis:: Technology advancement improves the quality of life, however, it might also introduce new pollutants to the ecosystem, which needs to deal with for the goal of a sustainable ecosystem. Municipal and industrial wastewater has always been important in improving the quality of life while maintaining the sustainability of our planet simultaneously. The diversity of pollutants in wastewater requires more advanced and demanding treatment processes. The ozonation, as a crucial part of the advanced oxidation processes, is a superior oxidation method compared to traditional oxidation methods. After the recognition of ozone as GRAS (generally recognized as safe), its applications have diversified and is used currently for microbial inactivation, degradation of recalcitrant organic compounds, removal of a diverse range of micropollutants, solubilization and reduction of sludge, and removal of color and odor components in wastewaters treatment processes. However, some considerable challenges still exist towards its universal application, such as high ozone generation costs, diversity of pollutants, and formation of ozonation by-products, which still require further studies. The main theme of this review paper is the transformation of traditional oxidation methods into advanced oxidation processes and the role of ozonation in this regard, including its applications, by-products, and its comparison with the traditional oxidation methods and advanced oxidation processes.
Źródło:: Journal of Ecological Engineering; 2023, 24, 6; 173--189
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Pollution Indicator of a Megawatt Hour Produced in Cogeneration – the Efficiency of Biogas Purification Process as an Energy Source for Wastewater Treatment Plants
Autorzy:: Ciuła, Józef
Kowalski, Sławomir
Wiewiórska, Iwona
Powiązania:: https://bibliotekanauki.pl/articles/24201631.pdf
Data publikacji:: 2023
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: biogas purification
cogeneration
pollution indicator
renewable energy
sewage treatment plant
Opis:: The sewage treatment plant, as a producer of renewable energy, should make every effort to ensure that the biogas used as a fuel meets the quality requirements, including those of the manufacturers of cogeneration units. Such measures necessitate the application of a conditioning process of biogas in order to remove harmful compounds, so that its parameters ensure failure-free operation of engines. The aim of the research was to evaluate the effectiveness of biogas treatment in the A-type installation using the “wet biogas treatment” technology, and in the B-type installation, which is a comprehensive solution comprising sulfur removal as a result of a simultaneous regeneration of the bed with oxygen, removal of siloxanes on activated carbon, cooling and heating of biogas along with its filtration. The analysis of the results of biogas testing for these two installations demonstrated fundamental qualitative differences for the benefit of the installation B, in which the biogas was characterized by a much lower content, mainly of sulfur, hydrogen sulfide, siloxanes and humidity. The introduced pollution indicator of a megawatt hour produced in cogeneration one has confirmed much higher pollution load from the A-type installation. The hybrid solution applied in the work with simultaneous regeneration of the bed has confirmed the efficiency of biogas conditioning. Such a solution contributes to a safe and reliable operation of the cogeneration system for generating energy from a renewable source, which in turn contributes to the optimization of energy.
Źródło:: Journal of Ecological Engineering; 2023, 24, 3; 232--245
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Active Physical Remediation of Acid Mine Drainage: Technologies Review and Perspectives
Autorzy:: Mulopo, Jean
Powiązania:: https://bibliotekanauki.pl/articles/2105273.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: ion-exchange
acid mine drainage
electrochemical
adsorption
membrane process
active physical treatment
Opis:: The successful acid mine drainage (AMD) treatment needs site-specific installation and implementation, as well as the deployment of technology that is compatible with the pollutants contained in the AMD. If key by-products of the AMD can be recovered, the financial sustainability of the AMD remediation method may be greatly improved. Additional research into novel and innovative solutions is necessary to advance in this direction. To accomplish this, it is necessary to have a complete awareness of current remediation technologies that are available and accessible. Active physical treatment methods such as ion exchange, adsorption, electrochemistry, and membrane techniques were examined in this article. Membrane technology excels in terms of ease of use, versatility, and environmental effect but produces brine streams the management of which remains vital for future adoption of the technology. Liquid membranes (LM), Micellar Enhanced Ultra-Filtration (MEUF), and Polyelectrolyte Enhanced Ultra-Filtration (PEUF) are all innovative membrane technologies that may provide some possibilities for metal recovery from chemical sludge and/or brine streams. Electrochemical technologies are considered an attractive alternative for AMD treatment, because they require only electricity as a consumable and can treat AMD to high standards by removing metals via (co)precipitation and sulfate via ionic migration (when an anion-exchange membrane is used in the configuration), while producing significantly less sludge. However, the accepted shortcomings include membrane/electrode fouling produced by (co)precipitates on the active surfaces necessary for the process, a lack of understanding regarding the effective scaling up to industrial scale, and the relatively expensive capital expenditure (CAPEX) required. The removal of heavy metals from AMD effluents by adsorption has a number of technical and environmental benefits, including high efficiency, and environmental friendliness. Despite its benefits, this technique has certain hurdles, such as the production process for low-cost adsorbents.
Źródło:: Journal of Ecological Engineering; 2022, 23, 6; 148--163
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "treatment process" wg kryterium: Wszystkie pola

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język