نتایج جستجو برای: tannery wastewater

تعداد نتایج: 34534  

2011
K. Karthikeyan

Under anaerobic conditions, organic pollutants in wastewater are degraded by microbes producing methane and carbon dioxide. The degradation process is effective compared to the more conventional aerobic processes and produces only 5-10% of sludge. This saves considerably on cost associated with the sludge disposal. Among anaerobic technologies, the most popular ones is the upflow anaerobic slud...

2015
J. R. Kamble P. D. Raut

The effect of tannery wastewater on the biochemical constituents of fresh water bivalve, Lamellidens marginalis was studied. The acute toxicity study was carried out to determine lethal concentration. Bivalves were exposed to different sublethal concentrations of tannery wastewater for 10 and 20 days. The biochemical changes in the protein, glycogen, lactic acid and cholesterol, in the tissues ...

1997
Elke Genschow Christian Maschke

Investigates anaerobic twostage treatment of tannery wastewater. This results in a mean chemical oxygen demand (COD) removal of 60 per cent for tannery B and more than 70 per cent for tanneries A and C with CODo = 5,710mg l–1 and mean detention time held at 3.5 days. Gas production was small, rating an estimated 75l kg–1 CODo with CODo = 5,710mg l–1. Tests simultaneously the influence of qualit...

Journal: :Indian journal of experimental biology 2003
T Srinath S K Garg P W Ramteke

Bacillus coagulans, a tannery wastewater isolate, previously shown to bind dissolved Cr(VI), retained its ability to biosorb Cr(VI) in different matrices. Polymeric materials like agar, agarose, calcium alginate and polyacrylamide were screened. Agarose emerged as the suitable candidate for biomass immobilization mainly due to its higher stability and integrity in acidic pH. Aptness of agarose ...

Journal: :Bioresource technology 2009
Claudio Di Iaconi Roberto Ramadori Antonio Lopez

This paper reports the results obtained during an investigation aimed at transferring to the demonstrative scale an aerobic granular biomass system (SBBGR--Sequencing Batch Biofilter Granular Reactor) integrated with ozonation for the efficient treatment of tannery wastewater. The results show that the integrated process was able to achieve high removal efficiencies for COD, TSS, TKN, surfactan...

Journal: :international journal of environmental research 0
g. varank department of environmental engineering, yýldýz technical university, davutpasa campus, esenler, istanbul, 34220, turkey h. erkan department of environmental engineering, yýldýz technical university, davutpasa campus, esenler, istanbul, 34220, turkey s. yazýcý department of environmental engineering, yýldýz technical university, davutpasa campus, esenler, istanbul, 34220, turkey a. demir department of environmental engineering, yýldýz technical university, davutpasa campus, esenler, istanbul, 34220, turkey g. engin department of environmental engineering, yýldýz technical university, davutpasa campus, esenler, istanbul, 34220, turkey

in the present study, the treatment of tannery wastewater was performed by electrocoagulationmethod (ec) using aluminium and steel electrodes. response surface methodology (rsm) with three factors; current density (i), electrolysis time (t) and ph, with each factor at five levels, was used to optimize the factors for higher chemical oxygen demand (cod) and total suspended solids (tss) removal. ...

2013
Zhu Wang Xu-Xiang Zhang Kailong Huang Yu Miao Peng Shi Bo Liu Chao Long Aimin Li

Antibiotics are often used to prevent sickness and improve production in animal agriculture, and the residues in animal bodies may enter tannery wastewater during leather production. This study aimed to use Illumina high-throughput sequencing to investigate the occurrence, diversity and abundance of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in aerobic and anaerobic s...

2016
Brasil Ferreira Vieira Araújo Silva

The objective was to evaluate the effect of tannery sludge vermicompost in the chemical properties of soil cultivated with tomato and irrigated with wastewater. The experimental design was completely randomized in a factorial 6 × 2, totaling twelve treatments with three replications. The treatments were: four tannery sludge vermicompost (25% Sludge tannery(LC) + manure T1, 25% Sludge tannery(LC...

Journal: :Bioresource technology 2009
Cristina S C Calheiros António O S S Rangel Paula M L Castro

Industrial wastewater treatment comprises several processes to fulfill the discharge permits or to enable the reuse of wastewater. For tannery wastewater, constructed wetlands (CWs) may be an interesting treatment option. Two-stage series of horizontal subsurface flow CWs with Phragmites australis (UP series) and Typha latifolia (UT series) provided high removal of organics from tannery wastewa...

2014
Suman Das

As conventional physico-chemical heavy-metal remediation technologies like ion-exchange, reverse osmosis, electrodialysis etc. are becoming extremely expensive, the possibility of use of microorganisms in bioremediation or biorecovery of different heavy metals from industrial effluents is extensively explored by different workers. Hexavalent chromium stressed environmental fungal isolates from ...

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