Temat: turbidity - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Determination of flocculation characteristics of natural stone powder suspensions in the presence of different polymers
Autorzy:: Basaran, H. K.
Tasdemir, T.
Powiązania:: https://bibliotekanauki.pl/articles/109390.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: wastewater
flocculation
settling rate
turbidity
Opis:: In this study, flocculation behaviors of natural stone powder suspensions were determined by applying classical jar tests. The flocculation tests were performed in the presence of different types of polymers at different polymer dosages and pHs. Then, the settling rates and residual turbidity values of suspensions were recorded. The flocculation performance of flocculants possessing unique molecular architecture (UMA) and conventional polyacrylamide based flocculants was investigated for the solidliquid separation of natural stone processing wastewater. The effects of flocculant type, dosage and pH were examined. The results obtained from this study indicated that in terms of the settling rate and turbidity, the medium anionic SPP 508 flocculant of 28% charge density showed a better flocculation performance compared to other conventional and UMA flocculants at natural pH. The SPP 508 flocculant gave the lowest turbidity value of 3 NTU (Nepheleometric turbidity Unit) at dosage of 0.3 mg/dm3, while the highest settling rate (870 mm/min) for the suspensions tested was achieved at 1 mg/ dm3 dosage for the same flocculant. However, the lowest settling rate was obtained by high cationic flocculant (Enfloc 440 C). All flocculants showed a good flocculation performance for the settling rate and turbidity at pH 8 and 10.
Źródło:: Physicochemical Problems of Mineral Processing; 2014, 50, 1; 169-184
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Starch Modification to Ensure Resource Savings and Environmental Safety in the Production Cardboard from Waste Paper
Autorzy:: Halysh, Vita
Trus, Inna
Tverdokhlib, Mariia
Nosachova, Yuliia
Krysenko, Tamara
Hlushko, Olena
Ploskonos, Victor
Radovenchyk, Vyacheslav
Gomelya, Mykola
Powiązania:: https://bibliotekanauki.pl/articles/2202218.pdf
Data publikacji:: 2022
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: starch
modification
cardboard
wastewater
turbidity
Opis:: Development of new and modification of existing chemicals, which act not only as binders, but also provide increased retention of fiber and other pulp components on the paper machine grid, accelerate pulp dehydration, and provide special properties (moisture resistance, heat resistance, improvement of other technical characteristics of paper and cardboard) of paper and cardboard, is an important and urgent task of chemical technology and ecology. This paper presents results of the corn starch modification with epoxypropyltriethanolammonium chloride, hexamethylolmelamine and hexamethylenetetramine. Modified starches provide the necessary strength indicators of cardboard from waste paper and low turbidity of wastewater. The obtained starches can be used in mills that use low-quality waste paper for the production of cardboard and paper products with the aim of saving fiber, reducing wastewater pollution and as a result reducing the negative impact on the environment.
Źródło:: Journal of Ecological Engineering; 2022, 23, 11; 68--75
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Evaluation of the Potential of Opuntia Ficus-Indica Cladodes as a Natural Flocculant for Wastewater Treatment through Simple Procedures
Autorzy:: Trindade, Sofia
Rouxinol, Maria Inês
Nabais, João
Agulheiro-Santos, Ana Cristina
Powiązania:: https://bibliotekanauki.pl/articles/1838408.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: turbidity
wastewater treatment
flocculation
lyophilization
mucilage extraction
Opis:: Nowadays there is a search for new alternatives to replace harsh and expensive chemical methods to wastewater treatments. The common methods include the usage of chemicals that negatively affect the environment and the human health. The cladodes of Opuntia ficus-indica (L.) Mill have a great potential for use in innovative, cheap, renewable and eco-friendly water treatment due to their flocculant properties. In this work, different water treatments including fresh cladodes, lyophilized cladodes and the material obtained through mucilage extraction were tested. The turbidity of the water was measured, and it was concluded that the use of 60 g of small pieces of fresh cut cladodes was the method with the best results, reaching 4 NTU of turbidity. It confirmed the ability of O. ficus-indica (L.) Mill cladodes to promote the flocculation of clay in water, enabling to turn the unused material waste into a useful raw material.
Źródło:: Journal of Ecological Engineering; 2021, 22, 5; 249-257
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Evaluation of flocculation behavior of marble powder suspensions
Autorzy:: Duzyol, S.
Powiązania:: https://bibliotekanauki.pl/articles/951841.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: flocculation
marble powder
water soluble polymer
starch
turbidity
Opis:: In this study, flocculation of marble powder suspensions was investigated depending on a polymer type and dosage. Polyacrylamide was used as a synthetic polymer, while starch was used as a natural polymer. The effect of polyacrylamide type was also examined using anionic, cationic and non-ionic polyacrylamides. Flocculation of suspensions was ascertained by turbidity measurements. It was found that anionic and especially non-ionic polymers flocculated the marble powder suspension more strongly than starch and cationic polymer. On the other hand, it was observed that the sequential addition of starch and polymer did not improve flocculation of suspension. On contrary, sequential addition of flocculants caused re-dispersion of the flocculated suspension. When a non-ionic polymer was used as the flocculant, the reached minimum turbidity of suspension was measured to be 38 NTU (nephelometric turbidity unit).
Źródło:: Physicochemical Problems of Mineral Processing; 2015, 51, 1; 5-14
1643-1049
2084-4735
Pojawia się w:: Physicochemical Problems of Mineral Processing
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Colloids in Septic Tank Effluent and Their Influence on Filter Permeability
Autorzy:: Spychała, M.
Nieć, J.
Walczak, N.
Marciniak, A.
Powiązania:: https://bibliotekanauki.pl/articles/952414.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: colloids
clogging
hydraulic conductivity
nonwoven textile
turbidity
Opis:: The aim of the study was to evaluate the content of colloids in septic tank effluent and their impact on textile filter permeability. Measurements were performed on septic tank effluent without suspended solids but containing colloids and without colloids – including only dissolved substances (filtered by micro-filters and centrifuged). The study was conducted on unclogged and clogged textile filter coupons. During the study the following measurements were conducted: turbidity, chemical oxygen demand and hydraulic conductivity of textile filter coupons. The colloid size range was assumed to be less than 1.2 microns according to the literature. Despite the relatively low content in the septic tank effluent the colloids played an important role in the clogging process. Both the filtering media, filled with low (unclogged) and high content of biomass (clogged) were sensitive to the clogging process acceleration due to the possibility of small diameter pore closure and oxygen access termination. Moreover, small size pores were probably sensitive to closing or bridging by small size colloidal particles.
Źródło:: Journal of Ecological Engineering; 2015, 16, 4; 74-80
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Physico-chemical parameter analysis of water in Musiri Taluk, Tamil Nadu, India
Autorzy:: Anbarasu, K.
Anbuselvan, G.
Powiązania:: https://bibliotekanauki.pl/articles/1119186.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: Musiri
Physico-chemical parameters
Total hardness
Turbidity
Water quality
Opis:: An analysis of the physico-chemical parameters of ground and surface water of Musiri Taluk (Tamil Nadu, India) were carried out to study the quality of water and suitability for domestic purpose. Cauvery water, well water and bore wells are the water resources of the study area. The parameters included pH, EC, TDS, Turbidity, Total hardness and content of Fluoride, Sulphate and Chloride were also assessed and compared with the standard values prescribed by BIS. The present investigation revealed that the quality of water of Cauvery water is suitable for drinking purposes, but the well water and bore well water samples are unfit for drinking and utility purpose.
Źródło:: World News of Natural Sciences; 2017, 6; 28-35
2543-5426
Pojawia się w:: World News of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Removal Turbidity of Water by Application of Electromagnetic Field Technology
Autorzy:: Abdulhasan, Maryam Jawad
Al-Mansori, Nassrin Jassim Hussien
Nasir, Mohsin J.
Powiązania:: https://bibliotekanauki.pl/articles/2025793.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: electromagnetic field
water treatment
steel filling
turbidity removal
Opis:: Human and which serves to preserve the resource at the science forefront. Water of electromagnetic is old but addressed to popular the quantity of contaminants in a new way. The current study presents results related to the influence of an electromagnetic field (EMF) on synthetic water with $Al_2Si_2O_5(OH)_4$ (represented by Turbidity). The impact of an EMF as the only factor or as an intensifying element in stainless steel packing systems that limits pollutant concentrations in the treated water was analyses. The system that combined simultaneously stainless steel filling was most efficient. The electromagnetic treatment unit was designed and constructed for testing the treatment of syntheses water having turbidity. The influence of two variables on the efficiency of contaminant elimination during the function of the electromagnetic treating unit was checked. A significant dependence between the kind of system used reactor diameter and number of electrical coil windings were observed. The results showed that the PH values remain constant with EMF. The performance of the unit is determined by turbidity, the result shows greatest efficiency removal with 99.99% at the minimum diameter (2.54 cm), 99.99% in three reactors with three different numbers of coil turns.
Źródło:: Journal of Ecological Engineering; 2022, 23, 1; 51-54
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Badanie wpływu mętności na kinetykę procesu fotokatalitycznego
Study on the effect of turbidity on the photocatalytic process kinetics
Autorzy:: Baran, W.
Adamek, E.
Brylewski, W.
Sobczak, A.
Powiązania:: https://bibliotekanauki.pl/articles/126715.pdf
Data publikacji:: 2013
Wydawca:: Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:: fotokataliza
TiO2
oczyszczanie ścieków
mętność
photocatalysis
wastewater treatment
turbidity
Opis:: Celem pracy było określenie, w jaki sposób zmętnienie naświetlanego roztworu wpływa na szybkość procesu fotokatalitycznej degradacji. W badaniach, jako środek wywołujący zmętnienie, wykorzystano strącony CaCO3. Substancja ta nie ma właściwości fotokatalitycznych, nie wpływa na potencjał redox oraz nie adsorbuje wzorcowego barwnika Acid Orange 7. Jako fotokatalizatora użyto TiO2 - anataz firmy Riedel de Haën. Efekty reakcji fotokatalitycznej oceniano na podstawie dekoloryzacji roztworu. Stwierdzono, że szybkość badanego procesu fotokatalitycznego maleje wraz ze wzrostem stężenia zawiesiny CaCO3. Udowodniono, że jest to spowodowane m.in przesłanianiem cząstek katalizatora przez zawiesinę. Jednak silnym inhibitorem procesu fotokatalitycznego prowadzonego w obecności anatazu okazał się również supernatant otrzymany z zawiesiny CaCO3, niezależnie od jej stężenia.
The purpose of this study was to determine the effect of turbidity of irradiated solution on the photocatalytic degradation rate of organic pollutants in aqueous solutions. In the experiments, the precipitated CaCO3 was used as a clouding agent. This substance has no photocatalytic properties, does not affect the red-ox potential and does not adsorb the model dye, namely Acid Orange 7. TiO2 - anatase from Riedel-de Haën was used as photocatalyst. The results of photocatalytic reaction were assessed by the discoloration of the solution. It was found that the photocatalytic process rate decreased with increasing concentration of the CaCO3 suspension. It is evidence that that the suspended particles screen the photocatalyst surface. Additionally, a strong inhibitor of photocatalytic process carried out in the presence of anatase was the supernatant obtained from CaCO3 suspension, regardless of its concentration.
Źródło:: Proceedings of ECOpole; 2013, 7, 2; 525-530
1898-617X
2084-4557
Pojawia się w:: Proceedings of ECOpole
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Predicting Water Quality Parameters in a Complex River System
Autorzy:: Kurniawan, Isman
Hayder, Gasim
Mustafa, Hauwa Mohammed
Powiązania:: https://bibliotekanauki.pl/articles/1839534.pdf
Data publikacji:: 2021
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: machine learning
water quality parameters
turbidity
suspended solids
Kelantan river
Opis:: This research applied a machine learning technique for predicting the water quality parameters of Kelantan River using the historical data collected from various stations. Support Vector Machine (SVM) was used to develop the prediction model. Six water quality parameters (dissolved oxygen (DO), biochemical oxygen demand (BOD), chemical oxygen demand (COD), ammonia nitrogen (NH3-N), and suspended solids (SS)) were predicted. The dataset was obtained from the measurement of 14 stations of Kelantan River from September 2005 to December 2017 with a total sample of 148 monthly data. We defined 3 schemes of prediction to investigate the contribution of the attribute number and the model performance. The outcome of the study demonstrated that the prediction of the suspended solid parameter gave the best performance, which was indicated by the highest values of the R2 score. Meanwhile, the prediction of the COD parameter gave the lowest score of R2 score, indicating the difficulty of the dataset to be modelled by SVM. The analysis of the contribution of attribute number shows that the prediction of the four parameters (DO, BOD, NH3-N, and SS) is directly proportional to the performance of the model. Similarly, the best prediction of the pH parameter is obtained from the utilization of the least number of attributes found in scheme 1.
Źródło:: Journal of Ecological Engineering; 2021, 22, 1; 250-257
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Reducing of Water Turbidity by Hydrotechnical Structures on the Example of the Wloclawek Reservoir
Autorzy:: Szatten, D. A.
Babinski, Z.
Habel, M.
Powiązania:: https://bibliotekanauki.pl/articles/124854.pdf
Data publikacji:: 2018
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: suspended sediment transport
turbidity of water
hydrotechnical structures
Wloclawek Reservoir
Opis:: The dynamics of river sediment transport reflects morphogenetic processes taking place in the catchment, being at the same time an anthropogenic indicator. The aim of the research is to determine the impact of hydrotechnical structures on the continuity of suspended sediments transport. The research area is the Lower Vistula River with a single dam – Wloclawek, operating since the 1970s. The research included direct measurements of water turbidity in 2013–2016 in characteristic cross-sections of the Vistula River, using commonly used methods. The LISST-25X laser grain composition measurement sensor was also used to collect data, enabling determination of grain size of the suspended sediments. However, on the selected section of the river, modelling of momentary transport of suspended sediments using GIS tools was carried out. There was a significant dynamics of sediments transport in the longitudinal profile of the river, in relation to the diversity of hydrological and morphological conditions of the Vistula River. The impact of Wloclawek Reservoir on water turbidity reduction was determined. The balance of transport of suspended material was related to the processes of erosion and sediment accumulation below the dam. The functioning of the Wloclawek Reservoir in the current system (as a single dam) has a significant impact on sediment transport, which directly determines the course of fluvial processes across the entire Lower Vistula (from km 675 to the estuary) and indirectly in the coastal zone of the Baltic Sea.
Źródło:: Journal of Ecological Engineering; 2018, 19, 3; 197-205
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Impact of monovalent cations on soil structure. Part II. Results of two Swiss soils
Autorzy:: Farahani, Elham
Emami, Hojat
Keller, Thomas
Powiązania:: https://bibliotekanauki.pl/articles/972565.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: : air-permeability
sodium
potassium
soil shrinkage
specific volume
turbidity
Opis:: In this study, we investigated the impact of adding solutions with different potassium and sodium concentrations on dispersible clay, water retention characteristics, air permeability, and soil shrinkage behaviour using two agricultural soils from Switzerland with different clay content but similar organic carbon to clay ratio. Three different solutions (including only Na, only K, and the combination of both) were added to soil samples at three different cation ratio of soil structural stability levels, and the soil samples were incubated for one month. Our findings showed that the amount of readily dispersible clay increased with increasing Na concentrations and with increasing cation ratio of soil structural stability. The treatment with the maximum Na concentration resulted in the highest water retention and in the lowest shrinkage capacity. This was was associated with high amounts of readily dispersible clay. Air permeability generally increased during incubation due to moderate wetting and drying cycles, but the increase was negatively correlated with readily dispersible clay. Readily dispersible clay decreased with increasing K, while readily dispersible clay increased with increasing K in Iranian soil (Part I of our study). This can be attributed to the different clay mineralogy of the studied soils (muscovite in Part I and illite in Part II).
Źródło:: International Agrophysics; 2018, 32, 1
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Sediment supply and fluxes in glacial and outwash fjords, Kongsfjorden and Adventfjorden, Svalbard
Autorzy:: Zajączkowski, Marek
Powiązania:: https://bibliotekanauki.pl/articles/2051833.pdf
Data publikacji:: 2008
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Arctic
Spitsbergen
subpolar fjords
meltwater
sediment flux
turbidity currents
hypopycnal flow
Źródło:: Polish Polar Research; 2008, 29, 1; 59-72
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Spatial information on total solar radiation: Application and evaluation of the r.sun modelf or the Wedel Jarlsberg Land, Svalbard
Autorzy:: Kryza, Maciej
Szymanowski, Mariusz
Migała, Krzysztof
Pietras, Małgorzata
Powiązania:: https://bibliotekanauki.pl/articles/2051631.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Arctic
Spitsbergen
solar radiation
r.sun
Linke Turbidity Factor
GISGRASS
Źródło:: Polish Polar Research; 2010, 1; 17-32
0138-0338
2081-8262
Pojawia się w:: Polish Polar Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Mętność wody dostarczanej przez systemy wodociągowe województwa małopolskiego.
Turbidity of water provided by the water supply systems in the Malopolskie Voivodeship.
Autorzy:: Bergel, T.
Pawełek, J.
Rułka, Z.
Powiązania:: https://bibliotekanauki.pl/articles/236546.pdf
Data publikacji:: 2009
Wydawca:: Polskie Zrzeszenie Inżynierów i Techników Sanitarnych
Tematy:: woda wodociągowa
jakość wody
mętność
tap water
water quality
turbidity
Opis:: W pracy dokonano analizy mętności wody dostarczonej odbiorcom w 2007 r. przez systemy wodociągowe w województwie małopolskim. W analizie uwzględniono wszystkie zakłady wodociągowe, które są objęte monitoringiem kontrolnym i przeglądowym przez wojewódzkie służby sanitarno-epidemiologiczne - łącznie 703. W badaniach obejmujących analizę 1794 próbek wody, w tym 167 próbek wody powierzchniowej, 1261 - wody podziemnej i 366 - wody mieszanej, określono mętność minimalną, maksymalną i średnią oraz liczbę przekroczeń mętności dopuszczalnej (1 NTU). Przeprowadzona analiza wykazała, że mętność wody wodociągowej, w zależności od źródła wody, wynosiła: wody powierzchniowe 0,1÷8,7 NTU (śr. 0,97 NTU), wody podziemne 0,01÷26,0 NTU (śr. 0,84 NTU), wody mieszane 0,02÷10,0 NTU (śr. 0,93 NTU). Najwięcej przekroczeń mętności dopuszczalnej odnotowano w wodociągach korzystających z wód powierzchniowych - 29,3% analizowanych próbek, a znacznie mniej w korzystających z wód podziemnych - 12,4% i mieszanych - 4,1%. Przekroczenia te w przeważającej większości przypadków mieściły się w przedziale 1÷5 NTU.
The water supplied to the users in the Malopolskie Voivodeship in 2007 was analyzed for turbidity. The analysis covered 703 waterworks regularly monitored by the Regional Sanitary and Epidemiological Station. A total of 1794 water samples was made subject to analysis (167 surface water samples, 1261 groundwater samples and 366 mixed water samples) to determine the minimal, maximal and average turbidity levels, as well as the number of episodes when the admissible turbidity value (1 NTU) was exceeded. The study has produced the following findings. According to the water source being used, the turbidity of the tap water supplied varied from 0.1 to 8.7 NTU (av. 0.97 NTU) for surface water, from 0.01 to 26.0 NTU (av. 0.84 NTU) for groundwater, and from 0.02 to 10.0 NTU (av. 0.93 NTU) for mixed water. The majority of episodes with the 1 NTU value being exceeded were observed in the waterworks using surface water (29.3% of samples). Significantly lower was the number of such episodes in the waterworks where use was made of groundwater (12.4% of samples) or mixed water (4.1% of samples). In most instances the exceeded turbidity values were within the range of 1 to 5 NTU.
Źródło:: Ochrona Środowiska; 2009, 31, 4; 61-64
1230-6169
Pojawia się w:: Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Supporting the Coagulation Process with Shale – Preliminary Studies
Wspomaganie koagulacji łupkiem ilastym – badania wstępne
Autorzy:: Jabłońska, B.
Powiązania:: https://bibliotekanauki.pl/articles/1813643.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:: water treatment
coagulation
turbidity
shale
oczyszczanie wody
koagulacja
mętność
łupki ilaste
Opis:: In the paper, clayey gangue (shale) accompanying coal beds was considered to support the coagulation process. The raw shale from a mine located in the southern part of Poland as well as the shale calcined at temperatures of 600°C and 800°C were tested. The coagulant was aluminum sulfate. The effects of turbidity reduction in water samples taken from the river Warta were analyzed. Aiding the process of coagulation with the raw shale increased the efficiency of reducing turbidity in water in comparison with the use of coagulant alone. The turbidity reduction was highest when using the shale calcined at 600°C. Applying the shale calcined at 800°C brought slightly worse results, and in some cases the turbidity reduction was lower than for the raw shale. The results indicate that the shale could be an effective adjuvant in the coagulation process. In addition, previous research (Jabłońska, B., Siedlecka, E., Removing heavy metals from wastewaters with use of shales accompanying the coal beds, Journal of Environmental Management, 155 (2015), 58-66) has shown that shale has relatively good adsorptive properties, which may further contribute to the quality of the treated water.
W pracy rozważono możliwości zastosowania płonnych skał ilastych (łupków ilastych) z kopalni węgla kamiennego do wspomagania procesu koagulacji. Badano surowe i kalcynowane w temperaturze 600°C i 800°C łupki ilaste towarzyszące pokładom węgla kamiennego z kopalni położonej w południowej części Polski. Jako koagulantu użyto siarczanu glinu. Analizowano efekty obniżenia mętności w próbkach wody pobranej z rzeki Warty. Wspomaganie procesu koagulacji łupkiem surowym przyniosło większą efektywność zmniejszenia mętności w wodzie niż w przypadku zastosowania samego tylko koagulantu. Efektywność obniżania mętności była najwyższa w przypadku zastosowania łupka kalcynowanego w temperaturze 600°C. Użycie łupka kalcynowanego w temperaturze 800°C przynosiło nieco gorsze rezultaty, w niektórych przypadkach efektywność obniżania mętności była niższa niż z użyciem łupka surowego. Wyniki badań wskazują, że proces koagulacji może być efektywnie wspomagany łupkami ilastymi. Wcześniejsze badania (Jabłońska, B., Siedlecka, E., Removing heavy metals from wastewaters with use of shales accompanying the coal beds, Journal of Environmental Management, 155 (2015), 58-66) wykazały, że łupki ilaste mają stosunkowo dobre właściwości sorpcyjne, co może dodatkowo pozytywnie wpływać na jakość oczyszczanej wody.
Źródło:: Rocznik Ochrona Środowiska; 2018, Tom 20, cz. 1; 780-792
1506-218X
Pojawia się w:: Rocznik Ochrona Środowiska
Dostawca treści:: Biblioteka Nauki

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