T O P

Tannery wastewater characterization and toxicity effects ...

Abstract. Tannery wastewater contains large quantities of organic and inorganic compounds, including toxic substances such as sulfides and chromium salts. The evaluation of wastewater quality in Chile nowadays is based on chemical specific measurements and toxicity tests.

Multi-species toxicity evaluation of a chromium-based ...

Multi-species toxicity evaluation of a chromium-based leather tannery wastewater: by Claudio Della Rocca, Domenico Petruzzelli, Elena De Nicola, Giovanni Pagano, Rahime Oral and Sureyya Meriç ... Abstract This study focused on a comparative evaluation of wastewater from a chromium-based tannery in Izmir (Turkey). Two sampling campaigns ...

Successful Integration of Membrane Technologies in a ...

Successful Integration of Membrane Technologies in a Conventional Purification Process of Tannery Wastewater Streams. ... Abstract. The aim of this work is to design and integrate an optimized batch membrane process in a conventional purification process used for the treatment of tannery wastewater. ... Unfortunately, in the case of tannery ...

Sedimentation of tannery wastewater - ScienceDirect

Abstract. Tannery wastewater is a powerful pollutant. It can cause severe environmental problems related to its high chemical oxygen demand (COD) together with elevated chrome concentration and deep colour content. The strength parameters employed are COD and suspended solids (SS). ...

Electrochemical oxidation of tannery wastewater - Rao ...

Abstract. Tannery wastewater was treated by an electrochemical oxidation method using Ti/Pt, Ti/PbO 2 and Ti/MnO 2 anodes and a Ti cathode in a two‐electrode stirred batch reactor. The changes in colour concentration, chemical oxygen demand ...

Biological Treatment of Tannery Wastewater - A Review

Abstract: Tannery wastewaters are highly complex and are characterized by high contents of organic, inorganic and nitrogenous compounds, chromium, sulfides, suspended solids and dissolved solids. Treatment of tannery wastewater is carried out by physical or chemical or …

StudieS on treatment of WaSteWater from tannerieS

key words : Waste water treatment and reuse, Reverse osmosis, Tannery wastewater (Received 15 November 2011; accepted 15 January 2012) aBStraCt due to the high conductivity of the global wastewaters from a tannery industries, wastewater reuse is only possible if reverse osmosis process is implemented in the wastewater treatment. the supernatant

Evaluation and Characterization of Tannery Wastewater

Abstract — The leather ... tannery wastewater from different tanning processes gave a number of conclusions. The results indicate that the wastewaters from the tanneries do not satisfy the legal ranges of selected parameters discharge to inland water and to sewer. Index ...

Tannery wastewater treatment by cavitation combined with ...

Tannery wastewater treatment by cavitation combined with advanced oxidation process (AOP) ... Abstract. Studies on the degradation of organic pollutants (phenolic, tannins etc.,) present in the wastewater released from tannery industry have been carried out in this work. The combined effect of cavitation and magnetic stirring with the advanced ...

Studies on Feasibility of Reverse Osmosis (Membrane ...

Tanneries reusing wastewater by combination of conventional and advanced Reverse Osmosis (RO) treatment technologies were assessed for technical and economic viabilities. Conventional treatment methods such as neutralization, clari-flocculation and biological processes are followed to clean the effluents before feeding to RO membrane modules.

(PDF) Microbial Treatment of Tannery Effluents: A Review

Tannery wastewater is highly complex and is characterized by organic, inorganic and nitrogenous compounds, chromium, sulfides, suspended solids and dissolved solids. ... [Show full abstract ...

Potential of Spent Tea Leaves as Adsorbent for Treatment ...

Potential of Spent Tea Leaves as Adsorbent for Treatment of Tannery Wastewater Abstract: Spent Tea Leaves, a natural adsorbent, have been successfully used for the treatment of tannery wastewater. Characterization of spent tea leaves was carried out made by Thermogravimetric analysis (TGA), Fourier Transform Infrared Spectroscopy (FTIR) and Scanning Electron Microscopy (SEM).

Enhanced removal of toxic Cr(VI) in tannery wastewater by ...

Abstract Owing to the acute toxicity and mobility, the Cr(VI) in tannery wastewater is a huge threat to biological and environmental systems. Herein, an effective photoelectrocatalytic reduction of Cr(VI) was carried out by applying electric field to photocatalysis of as-prepared TiO 2 spheres.

Characterization and treatability studies of tannery ...

This paper presents the detailed characteristics of tannery wastewater. It also explains effectiveness of CEPT in removing pollutants from tannery wastewater using various metal salts. The results of this study demonstrated that the tannery effluent had high concentrations of organic matter, solids, sulfates, sulfides and chromium.

Removal of Hazardous Pollutants from Tannery Wastewater …

wastewater from Dire tanning industry from May to August 2016. 2.2 Study Design: Batch mode comparative experimental study design has been carried out to determine the efficiency of pumice filter media on the treatment of industrial wastewater, the case of tannery wastewater filtration.

Trees and shrubs for control of tannery wastewater in India.

Abstract Tannery wastewater contains effluents that cause serious pollution problems. The main physico-chemical properties of a typical sample were determined.

TANWATER – REDUCTION OF NITROGEN DISCHARGE …

TANWATER – REDUCTION OF NITROGEN DISCHARGE FROM THE LEATHER INDUSTRY LIFE03 ENV/S/000595 Abstract The tannery Elmo Leather AB in Sweden has recently finalized a new wastewater treatment plant using an innovative system for nitrogen removal. The innovation of the plant is the implementation of a nitrification and denitrification step in the ...

(PDF) Biological Treatment of Tannery Wastewater - A Review

Biological Treatment of Tannery Wastewater - A Review ... How we measure 'reads' A 'read' is counted each time someone views a publication summary (such as the title, abstract…

Enhancing treatability of tannery wastewater by integrated ...

Abstract. The wastewater from tannery industry, using single treatment technology has not been enough to remove the chromium (Cr 6+) or high organic content (COD). Electrocoagulation (EC) and Biological Fungal Treatment (BFT) which endure against toxic and/or highly organic content, are promising technologies to eliminate impurities of tannery ...

Biological Treatment of Tannery Wastewater - A Review

TANNERY WASTEWATER CHARACTERISTICS. The characteristics of tannery wastewater vary considerably from tannery to tannery depending upon the size of the tannery, chemicals used for a specific process, amount of water used and type of final product produced by a tannery.

Emerging pollutants, related toxicity, and water quality ...

Abstract. The quality of drinking water is decreasing in distinct parts of the globe. Among the major sources of aquatic environmental pollution we have tannery wastewaters (TW). Pharmaceuticals into waters are reported as emerging pollutants and both of them are also related to surfactants and dyes usage during the manufacture.

Tannery Waste Water Treatment: A Review - ResearchGate

Tannery Waste Water Treatment: A Review. ... suspended solids and dissolved solids present in Tannery waste water. Treatment of tannery waste water is carried out by physical, chemical, biological ...

Powdered activated carbon and membrane bioreactors (MBRPAC ...

Abstract This paper describes the findings of an experimental investigation carried out on a pilot scale membrane bioreactor (MBR) with the addition of powdered activated carbon (PAC) to analyze improvements in effluent quality and in the filtration process. ... (MBRPAC) for tannery wastewater treatment: long term effect on biological and ...

Biological Treatment of Tannery Wastewater Using Activated ...

Abstract A study was conducted to evaluate the feasibility of Activated Sludge Process (ASP) for the treatment of tannery wastewater and to develop a simple design criteria under local conditions. A bench scale model comprising of an aeration tank and final clarifier was used for this purpose.

Pollutant Removal from Wastewater at Different Stages of ...

Abstract. The removal of chemical oxygen demand (COD), total organic carbon (TOC), turbidity, and chromium content from tannery wastewater at different stages of the process was experimentally investigated using electrocoagulation (EC) with iron and aluminium electrodes.

Development of a Method for the Determination of Chromium ...

This paper illustrates systematic development of a convenient analytical method for the determination of chromium and cadmium in tannery wastewater using laser-induced breakdown spectroscopy (LIBS). A new approach was developed by which liquid was converted into solid phase sample surface using absorption paper for subsequent LIBS analysis.

Microbial Community Structure and Diversity in an ...

Dec 26, 2014· A culture-independent approach was used to elucidate the microbial diversity and structure in the anaerobic-aerobic reactors integrated with a constructed wetland for the treatment of tannery wastewater in Modjo town, Ethiopia.

Treatment of Tannery Wastewater with Nano ...

Abstract. This work, aims to treat tannery wastewater sample to remove or reduce the pollutants load by using electrocoagulaion technique using an electrode of aluminum nanoparticles. The aluminum nanoparticles were synthesized using sol-gel method and characterized with XRD, TEM, SEM, EDX and FTIR. All the results show that these materials ...

Preparation of amphoteric polyacrylamide flocculant and ...

Oct 19, 2010· Abstract. Through two‐phase aqueous polymerization, amphoteric polyacrylamide (AmPAM) emulsion, as an environmental friendly flocculant for the tannery wastewater, was firstly synthesized using ammonium sulfate aqueous solution as the dispersion, using acrylamide, cationic monomer ethylene methyl propenoyl‐trimethylammonium chloride (DMC ...

Biological treatment of tannery wastewater by using salt ...

Apr 29, 2008· High salinity (1–10% w/v) of tannery wastewater makes it difficult to be treated by conventional biological treatment. Salt tolerant microbes can adapt to these saline conditions and degrade the organics in saline wastewater. Four salt tolerant bacterial strains isolated from marine and tannery ...