Temat: industrial effluent - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Water and wastewater management in a small tanning facility
Gospodarka wodno-ściekowa w małym zakładzie garbarskim
Autorzy:: Dziadel, Maciej
Ignatowicz, Katarzyna
Powiązania:: https://bibliotekanauki.pl/articles/2172302.pdf
Data publikacji:: 2022
Wydawca:: Fundacja Ekonomistów Środowiska i Zasobów Naturalnych
Tematy:: tannery
industrial effluent
chrome
industrial production
garbarnia
ściek przemysłowy
chrom
produkcja przemysłowa
Opis:: This paper presents a tannery industry's water and wastewater management problem. Information has been collected on the volume of water demand and, consequently, wastewater generation in these plants. This made it possible to relate them to the values generated by one of the smaller tanning plants located in Poland. The concentration of the pollutants contained in this wastewater, mainly chromium, was also determined from the study. Management of wastewater is a financial nuisance for small plants. The need to conclude contracts with specialized treatment plants, storage and long-distance transport of sewage, also by the respective companies, generates considerable costs, which may be a limiting factor of the willingness to invest in production. Wort reuse reduces the cost of purchasing chromium as a bath ingredient, reduces the frequency of waste disposal and significantly reduces company costs.
W niniejszym artykule przedstawiono problem gospodarki wodno-ściekowej przemysłu garbarskiego. Zebrane zostały informacje na temat wielkości zapotrzebowania na wodę, a co za tym idzie produkcja ścieków w tych zakładach. Dzięki temu możliwe było odniesienie ich do wartości generowanych przez jeden z mniejszych zakładów garbarskich znajdujących się w Polsce. Określono także na podstawie badań stężenie zanieczyszczeń zawartych w tych ściekach, przede wszystkim chromu. Zagospodarowanie ścieków jest uciążliwością dla małych zakładów pod względem finansowym. Konieczność zawierania umów z wyspecjalizowanymi oczyszczalniami, przechowanie, transport ścieków na dalekie odległości, również przez odpowiednie firmy, generują znaczne koszty które mogą być czynnikiem ograniczającym chęć inwestowania w produkcję. Ponowne wykorzystanie brzeczek zmniejsza koszty chromu jako składnika kąpieli, oraz ogranicza częstość wywozu nieczystości, ograniczając koszty przedsiębiorstwa.
Źródło:: Ekonomia i Środowisko; 2022, 3; 269--285
0867-8898
Pojawia się w:: Ekonomia i Środowisko
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Toxic heavy metals in the Mahul Creek water of Mumbai, India
Autorzy:: Singare, P.U.
Ansari, M.V.A.
Dixit, N.N.
Powiązania:: https://bibliotekanauki.pl/articles/11858.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: toxic metal
heavy metal
Mahul Creek
creek water
industrial effluent
India
Opis:: The present study was performed for the period of one year from January 2013 to December 2013 in order to understand the level of toxic heavy metals in the water of Mahul Creek near Mumbai. It was observed that the annual average concentration of heavy metals like Cd, As, Hg, Cr, Pb, Cu, Ni and Zn, was found to be 0.003, 0.004, 0.0009, 0.012, 0.015, 0.019, 0.04 and 0.23 ppm respectively. The results suggest that there is a need to have such scientific monitoring for longer time period in order to understand the trend in level of these toxic heavy metals discharged in to the creek water. It is feared that the existing problem if ignored may increase the level of this heavy metals in creek water thereby creating threat to the biological life of an aquatic ecosystem. From the results of the present investigation it seems that the time has come to move towards ecosystem specific discharge standards to maintain the health and productivity of natural resources on which the majority of Indians are dependent.
Źródło:: International Letters of Natural Sciences; 2014, 10
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Toxic heavy metals in sediments of Mahul Creek near Mumbai, India
Autorzy:: Singare, P.U.
Ansari, M.V.A.
Dixit, N.N.
Powiązania:: https://bibliotekanauki.pl/articles/11831.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: toxic metal
heavy metal
sediment
creek sediment
industrial effluent
Mahul Creek
India
Opis:: The present study was performed for the period of one year from January 2013 to December 2013 in order to understand the level of toxic heavy metals in the sediments of Mahul Creek near Mumbai. The annual average concentration of heavy metals like Cr, Zn, Cu, Ni, Pb, Cd, As and Hg was found to be 277.5, 121.7, 100.3, 63.8, 21.5, 14.6, 10.4 and 4.9 ppm respectively. It is feared that this heavy metals accumulated in the creek sediments may enter the water thereby creating threat to the biological life of an aquatic ecosystem. The results of present study indicates that the existing situation if mishandled can cause irreparable ecological harm in the long term well masked by short term economic prosperity due to extensive industrial growth.
Źródło:: International Letters of Natural Sciences; 2014, 10
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Water pollution along the Mahul Creek of Mumbai, India – Study of physico-chemical properties
Autorzy:: Singare, P.U.
Ansari, M.V.A.
Dixit, N.N.
Powiązania:: https://bibliotekanauki.pl/articles/10886.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: water pollution
Mahul Creek
creek water
Mumbai city
India
physicochemical property
industrial effluent
Opis:: The present study was performed for the period of one year from January 2013 to December 2013 in order to understand the physico-chemical properties of Mahul Creek water. From the results of our study it was observed that the annual average COD level was 362.09 ppm which was far higher than the maximum tolerable level of 250 ppm set for inland surface water as well as for marine coastal water. The annual average conductivity was found to be 6122.81 μS cm-1 which was very much above the conductivity limit for inland surface water of 1000 μS cm-1 set by Central Pollution Control Board (CPCB) for propagation of fisheries. The annual average total alkalinity level was recorded as 166.25 ppm, which according to the UN Department of Technical Cooperation for Development (1985) was found to be strongly alkaline. The annual average hardness level of the creek water was found to be 2488.65 ppm which was above the limit of 300 ppm set by ISI. From the results of the present investigation it seems that the time has come to implement proper effluent water treatment techniques and enforcement of pollution control by the regulatory authority on the indiscriminate discharge of industrial wastewater into water bodies.
Źródło:: International Letters of Natural Sciences; 2014, 11, 1
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Assessment of physico-chemical properties of sediments collected along the Mahul Creek near Mumbai, India
Autorzy:: Singare, P.U.
Ansari, M.V.A.
Dixit, N.N.
Powiązania:: https://bibliotekanauki.pl/articles/11066.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: assessment
physicochemical property
sediment
industrial effluent
toxic pollutant
Mahul Creek
Mumbai city
India
Opis:: The present study was performed for the period of one year from January 2013 to December 2013 in order to understand the physico-chemical properties of sediments samples collected along the Mahul Creek of Mumbai. The annual average pH value of the creek sediments was recorded as 5.38. It is feared that such low pH value of sediment might increase the acidity of creek water thereby triggering the heavy metal toxicity which will further reduced survivorship in fish through chronic stress and affect the reproductive partner. The annual average salinity content of the sediment was recorded as 4601.17 ppm. It is important here to note that the high salinity of the sediment may increase the salinity level of creek water which is considered as a major stress factor for most freshwater organisms including crustaceans. The average annual concentration of phosphate in the creek sediment was found to 480.39 ppm. Such high concentration of phosphate in the creek sediments might accelerate the process of eutrophication. From the results it appears that as India moves towards stricter regulation of industrial effluents to control water pollution, greater efforts are required to reduce the risk due to the toxic pollutants which are released into the ecosystems.
Źródło:: International Letters of Natural Sciences; 2014, 11, 1
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Behavioural toxicology of midge larvae Chironomous sp. after acute in situ exposure of different industrial effluents and drinking water
Autorzy:: Bhunia, D.
Sarkar, S.
Banerjee, K.
Nandy, A.
Talapatra, S.N.
Powiązania:: https://bibliotekanauki.pl/articles/11385.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: behavioural activity
toxicology
midge
larva
Chironomus
in situ exposure
industrial effluent
drinking water
Opis:: Behavioural activities in relation to toxicological aspects involve behavioural changes of aquatic organisms under the exposure of a contaminant. The present study aims to know behavioural activities of midge larvae Chironomus sp. at the in-situ acute exposure of different chemicals containing wastewater viz. lead-acid battery industrial effluent, mixed industrial effluent and fresh tap water (chlorinated) as drinking water in comparison to control (dechlorinated) water sample (aged tap water). The Chironomus larvae were kept in three different experimental chambers (perforated wall test vessels) with the exposure of different water samples. These samples were made with no dilution, 50 % dilution, 2.5 % dilution and control water sample. The behavioral activities for larvae of Chironomus sp. were measured at 0h, 2h, 24h and 48 h in in-situ condition. The behavioral activities viz. crawling, looping, ventilation, paralyses and subsequently death of the larvae were recorded in the field condition. A significant differences (P < 0.05, P < 0.01 and P< 0.001) were observed with increasing time of exposure while in few cases the data were increased without significance level. It was recorded that after exhibiting behavioural activities viz. crawling, looping, ventilation and paralyses finally all species were died 100 % of the population in lead acid battery effluent following both 24h and 48hr exposure. In addition, death of larvae were 70 % in mixed industrial effluent and 50 % in fresh tap water (chlorinated) after 48h exposure as compared to control sample water. In conclusion, the present results indicate that the larvae of Chironomous sp. are suitable indicators in the evaluation of the effluent quality in the studied stream, potential to know by behavioural toxicological study for heavy metals and organic pollution. Although it is a preliminary observation by assessing behavioural toxicology but future study in relation to biochemical and genetic damage of Chironomous larvae with the exposure of toxic water samples will provide bigger view.
Źródło:: International Letters of Natural Sciences; 2014, 14
2300-9675
Pojawia się w:: International Letters of Natural Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Studies on Pollution due to discharge of effluent from Pharmaceutical Industries of Dombivali Industrial Belt of Mumbai, India
Autorzy:: Singare, P. U.
Dhabarde, S. S.
Powiązania:: https://bibliotekanauki.pl/articles/412599.pdf
Data publikacji:: 2014
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: industrial pollution
waste water effluent
physicochemical analysis
toxic heavy metals
pharmaceutical industries
Dombivali industrial belt
Mumbai
Opis:: The paper deals with monitoring of pollution arising due to pharmaceutical based industries located along the Dombivali industrial belt of Mumbai, India. The study was carried for the period of one year from June, 2012 to May, 2013 to study the level of toxic heavy metals and the physico-chemical properties of waste water effluents discharged from the above industries. The concentration level of majority of toxic heavy metals like Cu, Cr, Pb, Fe and Zn were found to be maximum of 14.06, 0.57, 0.42, 18.93 and 3.31 ppm respectively in the month of February, while Ni concentration was found to be maximum of 0.43 ppm in the month of June. The pH and BOD values were reported to be maximum of 12.54 and 546 ppm respectively in the month of October. The conductivity and total solid content was found to be maximum of 27400 μmhos/cm and 9401 ppm respectively in the month of June. The cyanide content was maximum of 0.13 ppm in the month of April. The alkalinity, hardness, salinity, chloride, phosphate and COD content was reported maximum of 852, 694, 10.36, 4821, 46.32 and 1271 ppm respectively in the month of February. The DO content was found to be minimum of 3.00 ppm in the month of February. It was observed that the level of many of these toxic heavy metals except Zn and various physico-chemical parameters were above the tolerable limit set for inland surface water. From the results of the present investigation it seems that the time has come to move towards ecosystem specific discharge standards to maintain the health and productivity of natural resources on which the majority of Indians are dependent.
Źródło:: International Letters of Chemistry, Physics and Astronomy; 2014, 3; 16-23
2299-3843
Pojawia się w:: International Letters of Chemistry, Physics and Astronomy
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Temporal changes in the concentrations of zinc and cadmium in the sedimentary strata of Nozha Hydrodrome, Alexandria, Egypt
Autorzy:: Rifaat, A.E.
Ahdy, H.H.H.
Powiązania:: https://bibliotekanauki.pl/articles/48576.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: agricultural development
Alexandria
aquatic environment
cadmium concentration
Egypt
heavy metal
industrial development
Nozha Hydrodrome
sediment
sewage effluent
temporal change
urban development
vertical distribution
zinc concentration
Opis:: This study is concerned with the temporal changes in the levels of zinc and cadmium in the sediments of Nozha Hydrodrome during the past 100 years. Seven sediment core samples, covering the study area, were collected from the bottom of the Hydrodrome. A five-step sequential extraction technique was applied to determine the solid phase concentrations of zinc and cadmium. Zinc gives an idea of the quantities of sewage effluents, while cadmium provides an indication of the amounts of agricultural discharges. The vertical distribution curves show that the average total concentrations of zinc in the sediments increased at a rate of 2.5 μg g−1 y−1 from 1900 to 1950 and at 1.5 μg g−1 y−1 from 1950 to 1990. Since 1990 the zinc concentration in Nozha Hydrodrome sediments has been decreasing at 1.5 μg g−1 y−1. The average total cadmium concentration exhibits a different vertical distribution pattern: it increased at a rate of 0.42 μg g−1 y−1 from 1900 to 1950, after which it became constant from 1950 to 1970. Since 1970 it has been increasing at 0.53 μg g−1 y−1. The ongoing increase in cadmium concentrations in the sediments is due to the increase in agricultural discharges into the Hydrodrome, especially as significant amounts of phosphate fertilizers are used to nourish the soil around the Hydrodrome. The rise in cadmium concentrations since 1900 has been accompanied by a similar increase in zinc concentrations with time resulting from the discharge of untreated sewage into the Hydrodrome. In 1990 a sewerage system and sewage treatment plant came into operation, as a result of which discharges of domestic effluent into the Hydrodrome ceased. Since then the amount of zinc in sediments has been decreasing steadily.
Źródło:: Oceanologia; 2011, 53, 4
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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