Temat: Sludge - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Sludge as an agent improving soil properties
Autorzy:: Bartkowska, I
Powiązania:: https://bibliotekanauki.pl/articles/125365.pdf
Data publikacji:: 2013
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sludge
digestion of sludge
sanitation of sludge
natural utilization of sludge
agent improving properties of sludge
Opis:: Sewage-treatment plants generate sludge which needs to be neutralized for legal, esthetical, and practical reasons. Economical and ecological concerns indicate that sludge, as long as it is possible, should be returned to the natural environment. The article presents the process of autothermal thermophilic aerobic digestion (ATAD) as a measure to produce biomass, which can be naturally utilized. The description of theoretical principles of the process in question is accompanied by presentation of an ATAD installation which has been functioning since 2009 at the municipal sewagetreatment plant in Olecko. Results of microbiological and chemical tests carried out in the years 2010–2012 have been analyzed. Examinations embraced sludge which was the final product of the aforementioned sewage-treatment plant.
Źródło:: Journal of Ecological Engineering; 2013, 14, 2; 63-67
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 2.

Tytuł:: Determination of metal content in sewage sludge and sewage sludge ash to find opportunities to use them in the construction industry
Autorzy:: Świerczek, Lesław
Cieślik, Bartłomiej
Powiązania:: https://bibliotekanauki.pl/articles/1163144.pdf
Data publikacji:: 2018
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: heavy metals
sewage sludge
sewage sludge ash
sewage sludge management
Opis:: Sewage sludge management is becoming an increasing problem in developed and developing countries. Due to their physicochemical properties (mainly high content of heavy metals) a safe method of utilization is sought. Considering environmental protection, energy recycling, reduction in use of the raw materials and the possibility of immobilization hazardous substances, the use of ashes in building materials becomes a very good way of utilization. Both unprocessed sewage sludge and ashes after their thermal utilization can be used in the construction industry. Before using sediments and ashes, it is necessary to analyze the content of heavy metals, because they can have a negative effect, for example, on cement-stabilized products. The purpose of this work was to determine selected metals (Cd, Cu, Ni, Pb, Zn, Cr, Mg, Mn, Fe) in the primary, dehydrated, digested, excess sludge and ash after his incineration to check and compare heavy metal content. The obtained data can be used to optimize the production process of cement products that contain sewage sludge at differ form, and confirm the environmental safety of proposed approaches.
Źródło:: World Scientific News; 2018, 110; 227-235
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 3.

Tytuł:: Drop in Conductivity of Sewage Sludge in the Process of Autothermal Thermophilic Aerobic Digestion
Autorzy:: Bartkowska, I.
Powiązania:: https://bibliotekanauki.pl/articles/123193.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: autothermal stabilization of sewage sludge
conductivity of sewage sludge
neutralization of sewage sludge
sanitation of sewage sludge
sewage sludge processing
Opis:: The article presents research on the assessment of electrolytic conductivity changes of sludge during the process of its autothermal thermophilic aerobic digestion (ATAD), which takes place in a two-stage installation system, operating in a municipal sewage-treatment plant. In the years 2012–2014 sludge was studied and the results were analyzed. Thickened sludge in the intermediate tank, which was then directed to installation reactors, was examined. Conductivity was measured in each tank. In this manner collected results made it possible to follow the changes of this index at consecutive stages of the system. The results were statistically analyzed and it was determined to what degree, as a result of an objective process, the values of processed sludge conductivity would change. The conclusions from the carried-out studies and from own experiments are also presented.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 67-75
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 4.

Tytuł:: The effect of the excess sludge pretreatment on biogas productivity
Autorzy:: Bernat, Katarzyna
Zielińska, Magdalena
Kulikowska, Dorota
Cydzik-Kwiatkowska, Agnieszka
Wojnowska-Baryła, Irena
Waszczyłko-Miłkowska, Beata
Piotrowicz, Beata
Powiązania:: https://bibliotekanauki.pl/articles/298334.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Warmińsko-Mazurski w Olsztynie
Tematy:: biogas production
sludge pretreatment
activated sludge
aerobic granular sludge
ultrasound disintegration
homogenization
Opis:: To intensify biogas production during anaerobic stabilization of organic matter in sludge, pretreatment is applied. The effect of pretreatment of excess activated sludge (AS) and excess aerobic granular sludge (GS) on biogas productivity (BP) and composition was investigated. The sludge was pretreated with homogenization (6,500 rpm for 0.5 min (H0.5) and 1 min (H1.0)) or ultrasound disintegration at 20 kHz (50% amplitude for 2 min (D50%_2.0) and 4 min (D50%_4.0), and 100% amplitude for 4 min (D100%_4.0)). BP of AS of GS without pretreatment was 603.3±5 dm3/kg TS (793.4±7 dm3/kg VS); that was 200.6±4 dm3/kg TS (480.8±6 dm3/kg VS). With disintegration, the BP of AS increased by 7.8% (650.4±10 dm3/kg TS) (D50%_2.0) and 16.1% (700.6±11 dm3/kg TS) (D100%_4.0), and that of GS increased by 7.0% (214.0±5 dm3/kg TS) (D50%_2.0) and 16.0% (232.8±5 dm3/kg TS) (D100%_4.0). With homogenization, BP increased by 2.0-3.0% (AS) and 1.6-3.2% (GS).
Źródło:: Technical Sciences / University of Warmia and Mazury in Olsztyn; 2019, 22(1); 75-86
1505-4675
2083-4527
Pojawia się w:: Technical Sciences / University of Warmia and Mazury in Olsztyn
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 5.

Tytuł:: Analysis of the Quality of Stabilized Municipal Sewage Sludge
Autorzy:: Bartkowska, Izabela
Biedka, Paweł
Tałałaj, Izabela Anna
Powiązania:: https://bibliotekanauki.pl/articles/124921.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: autothermal thermophilic aerobic digestion
digestion of sludge
natural utilization of sludge
sludge
Opis:: The sludge management of many wastewater treatment plants in Poland has not been properly solved yet. The exploiters and designers often have to cope with the dilemma of choosing the method of processing and neutralizing sewage sludge. The method discussed in the article is only one of the options that fully fits in the trends of implementing good practices in the management of sewage sludge. It is a technologically and economically effective as well as environmentally friendly process. It contributes significantly to minimizing the amount of sewage sludge and allows the production of organic fertilizer instead of waste. The work discusses the quality of sewage sludge after autothermal thermophilic stabilization (ATAD). The results of investigations pertaining to the reaction of sludge, dry mass, dry organic matter, content of biogenic substances, calcium and magnesium compounds and heavy metals were analyzed.
Źródło:: Journal of Ecological Engineering; 2019, 20, 2; 200-208
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 6.

Tytuł:: Changes in hydrogen ion exponent of sewage sludge in the process of autothermal thermophilic aerobic digestion
Autorzy:: Bartkowska, I.
Powiązania:: https://bibliotekanauki.pl/articles/124965.pdf
Data publikacji:: 2014
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: activated sludge
hydrogen ion exponent
sewage sludge
sludge processing
thermophilic aerobic digestion
Opis:: This paper presents a study on the evaluation of digested sewage sludge during the process of Autothermal Thermophilic Aerobic Digestion (ATAD), taking place as a three-tank process at a municipal waste water treatment plant in Luban, Poland. ATAD installation was manufactured by FUCHS Enprotec GmbH Mayen-Deutschland. Over the period from June 2006 to February 2010 sewage sludge digested by tha ATAD-Process was examined. The hydrogen ion exponent was measured in every tank. The results obtained indicated changes in the composition of the digesting sludge at successive stages of the process. Over the study period the ATAD-installation was in both a two- and a three-stage process. pH of sludge under study during the process of the thermophilic stabilisation changes and its value grows significantly, with the installation working in a two-stage arrangement from 6,63 to 7,99, and when the installation was operated as a three-stage system from 6,60 to 8,14. The results collected were subject to the statistical analysis. The paper presents conclusions drawn from the study and own experience.
Źródło:: Journal of Ecological Engineering; 2014, 15, 1; 32-37
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 7.

Tytuł:: Assessment of the Influence of Evaporation and Evapotranspiration on the Volume of Sludge Accumulation in the Sludge Drying Beds
Autorzy:: Velychko, Svitlana
Dupliak, Olena
Powiązania:: https://bibliotekanauki.pl/articles/1839097.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sludge drying beds
evaporation
evapotranspiration
sludge
sewage
Opis:: At present, the sludge drying beds of the Kyiv wastewater treatment plants are operated as a sludge accumulator in an emergency mode, practically without free volume. The purpose of the work was to determine the equation for the evaporation losses calculation from sludge drying beds and the required free volume for sludge accumulation for the next 7 years. The required free volume was calculated using the water budget method which takes into account evaporation from the water surface and evapotranspiration during the vegetation. The total losses from sludge drying beds is 1076 mm/year in normal year and is 920 mm/year in a cold year. The required free volume was calculated considering the trend of increasing average temperature over the last decade and considering the significant environmental risk. A correction was made for one unfavourable year with cold summer and warm winter and an additional rain rate of 1% probability. The additional free volume required is 3.24 million m3 for 7 years if all three sludge drying beds are operated.
Źródło:: Journal of Ecological Engineering; 2021, 22, 2; 63-69
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 8.

Tytuł:: Analysis of the Variability of the Composition of Sewage Sludge Before and After Drying Treatment – SEM Studies
Autorzy:: Kiper, Justyna
Głowacka, Anna
Rucińska, Teresa
Powiązania:: https://bibliotekanauki.pl/articles/124107.pdf
Data publikacji:: 2019
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: sewage sludge
sewage sludge management
SEM observation
Opis:: The aim of the study was to determine the physical and chemical properties of the sewage sludge from “Pomorzany” and “Zdroje” municipal wastewater treatment plants located in Szczecin, Poland. The paper presents the outcomes of SEM observation of dried and stabilized sewage sludge. The research on the obtained materials was conducted using reference methods; the images from a scanning electron microscope were used. The amount of sewage sludge produced with the methods of its management was presented. The technology of sludge management is based on its dehydration up to dry weight content of roughly 20% and then drying in contact dryers up to 90–92% dry weight, separately in both plants. Dried sewage sludge is subsequently burned in mechanical grid boilers at “Pomorzany” WWTP. The analyzed materials were characterized by the pH of 7.90–8.42, dry mass and average organic matter content were 18.949% and 68.903%, respectively. The elements identified in the largest amount on the surface of analyzed materials included calcium, iron, phosphorus, sulphur and silicon. The amount of phosphorus ranging from 1.82 to 3.44% indicates the possibility of using sewage sludge as organic fertilizer product or an alternative source of phosphorus.
Źródło:: Journal of Ecological Engineering; 2019, 20, 7; 45-52
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 9.

Tytuł:: Co-digestion of waste from the salmon aquaculture sector with regional sewage sludge: effects on methane yield and digestate nutrient content
Autorzy:: Estevez, M. M.
Tomczak-Wandzel, R.
Akervold, K.
Tornes, O.
Powiązania:: https://bibliotekanauki.pl/articles/1190195.pdf
Data publikacji:: 2019
Wydawca:: Gdańska Szkoła Wyższa
Tematy:: fish sludge
co-digestion
sewage sludge
methane
nutrients
Opis:: In Western Norway, the availability of aquaculture waste resources is relevant for both biogas production and nutrients recovery. In this study, fish sludge from the farming of salmon was tested as co-digestion substrate in the anaerobic digestion of municipal sewage sludge from different regional treatment plants. Additions of 5, 10, 25 and 30% of fish sludge in volume were evaluated. Fish sludge did not improve the methane yield of Grødaland sewage sludge. In contrast, Bergen plant’s sewage sludge yield increased up to 40% with additions of 25% fish sludge. Co-digestion mixtures are being further tested in semi-continuous reactors for its long-term process stability, methane yield, and the effects that fish sludge may have on the final digestate’s nutrient content.
Źródło:: Eco-Energetics: technologies, environment, law and economy; 2019, 2; 29--34
2657-5922
2657-7674
Pojawia się w:: Eco-Energetics: technologies, environment, law and economy
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 10.

Tytuł:: Removal of Octyl Phenol Ethoxylate (OPE) Using Processed and Unprocessed Industrial Biological Waste Sludge
Autorzy:: Dinçer, Ali Rıza
Aral, İbrahim Feda
Powiązania:: https://bibliotekanauki.pl/articles/1845422.pdf
Data publikacji:: 2021
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: waste sludge
adsorption
octyl phenol ethoxylate
pyrolyzed sludge
Opis:: This study investigated the Octyl Phenol Ethoxylate (OPE) removal potentials of raw and treated industrial treatment sludges (ITS) at different pH. Experiments were conducted in a set of 500 ml Erlenmeyer flasks, into which OPE solutions of 300 ml with different initial concentrations (50-300 μg/l) were added into. Adsorption of Octyl Phenol Ethoxylate from an aqueous solution into ITS105 (T=105°C), ITS300 (T=300°C), ITS600 (T=600°C) and ITS450 (pyrolyzed, T=450°C) was carried out at a room temperature. The OPE adsorption rate increase in the treatment sludge processed at 600°C. As opposed to the sludge treated at 105°C, the adsorption rate decreased as the concentration increased. The reason for this was that the porous structure was degraded at 600°C, and the surface charge balance was disrupted. ITS300 had a lower adsorption capacity for Octyl Phenol Ethoxylate removal than ITS105, ITS600 and ITS450 (pyrolyzed). The treatment sludge pyrolyzed at 450°C conformed with the Freundlich isotherm at pH 4 (R2=0.94) and pH 7 (R2=0.89). The treatment sludge heat-treated at 600°C conformed with the Freundlich isotherm at pH 4 (R2=0.97), pH 7 (R2=0.98) and pH 10 (R2=0.99). Additionally, for ITS600, the Brunauer, Emmett and Teller (BET) isotherm was valid at neutral pH. The OPE adsorption coefficient for ITS600 at pH 4 and pH 7 was calculated as 1.05 L/μg and 1.083 L/μg, respectively. According to the BET isotherm (for ITS600) the qm values at pH 4 and pH 7 were respectively 8.21 μg/g and 2.92 μg/g. The temperature of the adsorption value obtained with the Temkin isotherm showed that the interaction between the OPE and the adsorbent substances was not a chemical or ionic interaction but probably a physical interaction.
Źródło:: Archives of Environmental Protection; 2021, 47, 1; 53-60
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 11.

Tytuł:: Sewage sludge management – a case study
Zarządzanie osadami ściekowymi - studium przypadku
Autorzy:: MIŁEK, Dorota
LATOSIŃSKA, Jolanta
DYK, Zbigniew
Powiązania:: https://bibliotekanauki.pl/articles/435250.pdf
Data publikacji:: 2018-06-01
Wydawca:: Uniwersytet Opolski
Tematy:: sludge management
local development
BIONOR SLUDGE technology
gospodarka osadowa
rozwój lokalny
technologia BIONOR SLUDGE.
Opis:: Currently, the constantly growing problem in the municipal economy is the management of sewage sludge. According to the law, it is the local government that is responsible for the utilization of sewage sludge and is obliged to select optimal technologies, obtain funds and convince the community of the necessity of its implementation. BIONOR Company has developed an innovative concept for the separation and utilization of sewage sludge in the BIONOR SLUDGE compact installation. This innovative technology is effective from the perspective of reducing the waste amount and can be used to solve the problem of utilization of sewage sludge produced in small, rural wastewater treatment plants. The aim of the article is the characterization of the BIONOR SLUDGE technology, a comparative analysis of costs of sludge disposal using a variety of methods and an indication of the importance of sludge management for the local development. To achieve the goal set in the article, a discriminative method was used - a description of the BIONOR SLUDGE technological line as well as a case study method - a comparative analysis of the costs of operation of BIONOR SLUDGE technological line and the costs of landfilling and utilizing of sewage sludge. The research results confirm that the monthly operational costs of the BIONOR SLUDGE technological line are lower than the costs of monthly landfilling or disposal. For potential municipalities, the introduction of BIONOR innovative technology is economical. Moreover, its usage is currently essential for many municipalities due to the introduction of a ban on landfilling of this type of waste from 1 January 2016. This technology can be used to solve the problem of utilization of sewage sludge generated in small, rural wastewater treatment plants.
Aktualnie wciąż narastającym problemem w gospodarce komunalnej jest zagospodarowanie osadów ściekowych. Zgodne z prawem to gmina jest odpowiedzialna za ich zagospodarowanie i na niej ciąży obowiązek doboru optymalnych technologii ich zagospodarowania, pozyskania na ten cel funduszy i przekonania społeczności gminy o konieczności ich realizacji. Przedsiębiorstwo Bionor Sp. z o.o. opracowało nowatorską koncepcję separacji i unieszkodliwiania osadów ściekowych w kompaktowej instalacji BIONOR SLUDGE. Ta innowacyjna technologia jest efektywna z punktu widzenia zmniejszania ilości odpadów. Może być wykorzystana w celu rozwiązania problemu zagospodarowania osadów ściekowych wytwarzanych w małych, wiejskich oczyszczalniach ścieków. Celem artykułu jest scharakteryzowanie innowacyjnej technologii BIONOR SLUDGE, analiza porównawcza kosztów unieszkodliwiania osadów ściekowych różnymi metodami oraz wskazanie znaczenia gospodarki osadowej w rozwoju lokalnym. Dla realizacji celu artykułu wykorzystano metodę deskryptywną – opis linii technologicznej BIONOR SLUDGE oraz metodę studium przypadku – analiza porównawcza kosztów eksploatacji linii technologicznej BIONOR SLUDGE z kosztami składowania i utylizacji osadów ściekowych. Wyniki badań potwierdzają, że miesięczne koszty eksploatacji linii technologicznej BIONOR SLUDGE są niższe od miesięcznych kosztów składowania lub utylizacji. Dla potencjalnych gmin wprowadzenie nowatorskiej technologii firmy Bionor jest opłacalne. Ponadto jej wykorzystanie jest aktualnie konieczne dla wielu gmin ze względu na wprowadzenie od 01.01.2016 roku zakazu składowania tego rodzaju odpadów. Technologia ta może być wykorzystana w celu rozwiązania problemu zagospodarowania osadów ściekowych wytwarzanych w małych, wiejskich oczyszczalniach.
Źródło:: Economic and Environmental Studies; 2018, 18, 2; 733-746
1642-2597
2081-8319
Pojawia się w:: Economic and Environmental Studies
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 12.

Tytuł:: Fecal sludge management : Insights from selected cities in Sub-Saharan Africa
Autorzy:: Odey, Emmanuel Alepu
Abo, Bodjui Olivier
Giwa, Abdulmoseen Segun
Li, Zifu
Powiązania:: https://bibliotekanauki.pl/articles/205486.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: sanitation
fecal sludge
sludge management
West Africa
urban environment
Opis:: Recent studies have shown that over half of the world’s population lives in urban areas, with the number of people living in slums growing by over 20 million per year and people living in urban areas lacking access to adequate sanitation. This study presents a review of the challenges facing fecal sludge management (FSM). A globally relevant issue in developing urban centers, especially in selected developing countries in West Africa was discussed. Some key findings of the review are that effective sanitation in developing areas depends on the chain of services and that one of the largest problems in sanitation is FSM. This study presents the initial steps toward understanding the main issues involving FSM in developing cities of West Africa. Results are intended to be used as a support for decisions on policies, strategies for FSM, and investments for improved treatment facilities in the region. The study suggests that governments and private sector organizations should develop adequate measures for handling fecal sludge.
Źródło:: Archives of Environmental Protection; 2019, 45, 2; 50-57
2083-4772
2083-4810
Pojawia się w:: Archives of Environmental Protection
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 13.

Tytuł:: Analysis of Selected Technical and Technological Parameters of the Sewage Sludge Stability Process
Autorzy:: Bartkowska, I.
Wawrentowicz, D.
Powiązania:: https://bibliotekanauki.pl/articles/123847.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: autothermal thermophilic stabilization
sewage sludge
dry mass
organic substances
sewage sludge hygienization
sewage sludge in agriculture
Opis:: The article presents the results of the analysis, which was carried out in 2015-2017 on the example of autothermal installation of thermophilic sludge stabilization (ATAD) in a sewage treatment plant in Giżycko. The installation was created in 2003 as the first of its kind and still remains operational. The purpose of the conducted research was to assess the suitability of the analyzed technological parameters as tools that can be used by operators to determine the actual possibilities of changing the operating conditions of the installation or to develop an optimization strategy to reduce the energy demand. The dry mass content and organic dry mass content was used as the assessment indicators. In the analysed period, the sludge from the process contained from 47.47% to 60.80% of organic matter in the dry mass of the sludge. The organic dry matter decrease due to the process was also calculated, and it ranged from 26.4% to 48.7%. The amount of sludge undergoing the process and the amount of electricity consumption were also analysed. On this basis, the energy consumption indicators in the ATAD process were calculated.
Źródło:: Journal of Ecological Engineering; 2018, 19, 4; 69-74
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 14.

Tytuł:: Municipal Sewage Sludge Processing Method Effect on the Content of Polycyclic Aromatic Hydrocarbons
Wpływ przeróbki osadów ścieków komunalnych na zawartość wielopierścieniowych węglowodorów aromatycznych
Autorzy:: Wiater, Józefa
Wróblewska, Agata
Ofman, Piotr
Powiązania:: https://bibliotekanauki.pl/articles/1811760.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: PAH
sewage sludge
sludge disposal
WWA
osady ściekowe
unieszkodliwianie osadów
Opis:: The aim of the study was to determine PAH content and the share of their individual groups in municipal sewage sludge at individual stages of their production and processing in a municipal wastewater treatment plant. Sludge samples were collected in three study cycles: autumn (November), winter (February) and spring (April) in 2017 and 2018. In each cycle the samples of initial sludge, excessive sludge after press, digestate sludge and digested dehydrated sludge were analyzed. Three samples were taken from each sludge for further analysis. The content of 16 PAH (naphthalene, acenaphthylene, acenaphthene, fluorene, phenanthrene, anthracene, fluoranthene, pyrene, benzo(a)anthracene, chrysene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(a)-pyrene, dibenzo(a,h)anthracene, benzo(g,h,i)perylene and indeno(1,2,3-c, d)pyrene) was determined in the samples in the Faculty Chemical Laboratory at Białystok University of Technology. For this purpose, a gas chromatography method coupled to mass spectrometry using a GC/MS Agilent 7890B chromatograph was used. The results were given as single PAH compounds, which were then grouped by the number of aromatic rings. It was found that the total content of 16 PAHs depended on the type of sewage sludge and the highest one occurred in the initial sludge, and much lower in other sediments. The fermentation process, and more drainage of the fermentation sludge, reduced the content of 16 PAHs. The transformation processes had an influence on the hydrocarbon content in particular groups. The share of PAH groups depending on the number of rings in total 16 depended on the date of collection of studied sludges. In the studied sludges, a group of three and four-ring hydrocarbons dominated, and the least was two- and six-ring hydrocarbons. PAH content in all analyzed sludges did not exceed the norm for the total of 11 PAHs proposed by the European Commission for sludge used for agriculture.
Celem pracy było określenie zawartości WWA i udziału poszczególnych grup w komunalnych osadach ściekowych na poszczególnych etapach ich produkcji i przetwarzania w oczyszczalni ścieków komunalnych. Próbki osadów pobrano w trzech cyklach badań: jesienią (listopad), zimą (luty) i wiosną (kwiecień) w 2017 i 2018 roku. W każdym z cykli badano próbki osadu wstępnego, osadu nadmiernego po prasie, osadu przefermentowanego i osadu przefermentowanego poddanego dehydratacji. Z każdego osadu pobrano trzy próbki do dalszej analizy. Zawartość 16 WWA (naftalen, acenaften, acenaften, acenaften, fluoren, fenantren, antracen, fluoranten, piren, benzo(a)antracen, chryzen, benzo(b)fluoranten, benzo(k)fluoranten, benzo(a)piren, dibenzo(a,h)antracen, benzo(g,h,i)perylen i indeno(1,2,3-c, d)piren) zostały zbadane w próbkach w Wydziałowym Laboratorium Chemicznym Politechniki Białostockiej. W tym celu zastosowano metodę chromatografii gazowej sprzężonej ze spektrometrią mas przy użyciu chromatografu GC/MS Agilent 7890B. Wyniki podano jako pojedyncze związki WWA, które następnie pogrupowano według liczby pierścieni aromatycznych. Stwierdzono, że łączna zawartość 16 WWA zależy od rodzaju osadu ściekowego, przy czym najwyższa z nich występuje w osadach wstępnych, a znacznie niższa w innych osadach. Proces fermentacji i dalsze odwadnianie osadu fermentacyjnego zmniejszyły zawartość 16 WWA. Procesy transformacji wpłynęły na zawartość węglowodorów w poszczególnych grupach. Udział grup WWA w zależności od liczby pierścieni w sumie 16 zależał od terminu poboru badanych osadów. W badanych osadach dominowała grupa węglowodorów trój- i czteropierścieniowych, a najmniej dwu- i sześciopierścieniowych. Zawartość WWA we wszystkich analizowanych osadach nie przekraczała normy dla 11 WWA zaproponowanej przez Komisję Europejską dla osadów wykorzystywanych w rolnictwie.
Źródło:: Rocznik Ochrona Środowiska; 2019, Tom 21, cz. 1; 556-565
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Skocz do pozycji: 15.

Tytuł:: Liming of Acidic Soils with Belite Sludge
Autorzy:: Isakov, A. E.
Barygina, K. V.
Powiązania:: https://bibliotekanauki.pl/articles/124174.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: belite sludge
nepheline sludge
liming
acidic soils
recycling
metallurgical wastes
Opis:: The metallurgical enterprises are a major source of large-tonnage industrial wastes containing valued components. A significant discrepancy between the volumes of waste formations and its utilisation leads to the necessity of large-scale sludge dumping. The article describes a recycling method for belite sludge that is the waste of the alumina production from nepheline concentrate. The physical and chemical properties of belite sludge were analysed and the conclusions about the possibility and outlook of its using as an ameliorant were drown. The main results show that adding the belite sludge to acidic soils provides a certain positive effect. The main conclusions allow to say that belite sludges are an ecologically safe substance that can be used as a liming material for acidic soils.
Źródło:: Journal of Ecological Engineering; 2017, 18, 6; 95-102
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Zmień widok

na półce

Informacja

Wyszukujesz frazę "Sludge" wg kryterium: Temat

Źródło danych

Dostawca treści

Kolekcja

Rok wydania

Wydawca

Temat

Autor

Typ dokumentu

Język