The Impact of Process Sequences on Pollutant Removal Efficiencies in Tannery Wastewater Treatment

Ayoub, George M.; Hamzeh, Abeer; Al‐Hindi, Mahmoud

doi:10.1007/s11270-012-1379-y

Cited by 14 publications

(7 citation statements)

References 45 publications

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“…Overall, tannery wastewater appears to have an alkaline pH (7 < pH < 11), a dissolved solids: total solids (TS) ratio of >80%, and a substantial amount of chloride, sulfate, TKN, and Cr [12][13][14]. Particulate solids that constitute a relatively small fraction of TS are highly settleable (e.g.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Utilizing aluminum etching wastewater for tannery wastewater coagulation: performance and feasibility

Güngör

Karakaya

Güneş

et al. 2016

Desalination and Water Treatment

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A B S T R A C TThe main objective of this study was to investigate the feasibility of utilizing etching wastewater (EW) of aluminum (Al) coating industry as an alum substitute in industrial wastewater treatment. Our hypothesis was that Al-rich EW could be an effective substitute for commercial liquid alum used in a nearby (<10 km) tannery wastewater treatment plant (Corlu, Turkey). Bench-scale alum and EW jar tests along with an economic analysis were performed to test this hypothesis. Jar test results conducted using identical pH and Al doses showed that Al-rich EW performed similar to alum in terms of chemical oxygen demand (COD), suspended solids (SS), and turbidity removal. Regardless of its origin (alum or EW), 1 g of Al approximately removed 30 g COD and 20 g SS via a combined effect of coagulation and plain settling. Commercial alum and EW removed more than 95% of COD and turbidity; 60% of total COD from the tannery wastewater. Preliminary cost analysis showed that coagulant expenditure could be reduced by 40% if alum was substituted with EW.

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Section: Desalination and Water Treatmentmentioning

confidence: 99%

Utilizing aluminum etching wastewater for tannery wastewater coagulation: performance and feasibility

Güngör

Karakaya

Güneş

et al. 2016

Desalination and Water Treatment

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“…The different alternatives of leather manufacture result in a generation of wastewater with very different physicochemical properties. As a result, the selection of the most appropriate wastewater treatment for a specific type of effluent that results is a challenging task (Ayoub et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the aerobic and anaerobic degradation of an industrial effluent from vegetable tannery processing of leather on batch reactors

Canon¹,

Angelis-Dimakis²,

Ospina-Mora

2020

Global NEST: The International Journal

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<p>In this study, the aerobic and anaerobic biodegradability of the industrial wastewater from the vegetable tanning process were evaluated. Water from a food wastewater treatment system was used as seed inoculum for the aerobic process and mature granular methanogenic sludge from a brewery industrial wastewater plant was used for the anaerobic process. The water from the tanning industry had a biological to chemical oxygen demand ratio of 33% with values of total chemical oxygen demand (COD) in the range of 342000 mg O2/L and total dissolved solids of 506595 mg/L. The assay of the tannery effluent under aerobic conditions resulted in a decrease of COD of 39.2% and a degradation of tannins lower than 12% after 26 days, while the anaerobic degradation showed a COD reduction of 65% with a 39% of degradation of tannins. The production of methane and Volatile Fatty Acids, during the anaerobic treatment, suggests a potential adaptation of biological organisms present in the mature anaerobic granular methanogenic sludge.</p>

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“…Tannery industries are one of the most polluting industries. The different steps involved in tanning process generates huge amount of toxic effluent that are discharged into the environment causing water pollution [17,18]. The effluent generated is highly loaded with organic matter, solids, sulphides etc.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of macroporous pure alumina capillary membrane using boehmite as binder for filtration application

et al. 2015

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Macro-porous pure alumina membrane was prepared from boehmite sol having a pH of 3.6 as a binder with alumina powder in different concentrations in weight percentage (2.5, 4 and 7 %) to make extrudable ceramic paste. The pastes were extruded by a plunger type extruder to 3/2 mm (outer/inner diameter) capillary tube. The capillaries were dried in a roller drier and subjected to retarded sintering at 1350°C for 2.5 h. Prepared membrane were characterized and compared with each other and membrane prepared with Methocel as organic binder for pore size, porosity, mechanical strength and clean water flux. The pore size of 7 % boehmite sol based membrane was found to be 400 nm when compared to 1.3 lm for membrane prepared with Methocel. The boehmite act as sintering agent and carry out the retarded sintering of alumina at 1350°C in place of 1700°C to form porous alumina membrane. Boehmite membrane was used for treatment of contaminated tannery wastewater and compared with membrane prepared from conventional organic binder. About 99 % removal in total organic carbon was obtained in case of boehmite membrane and chemical oxygen demand (COD) was reduced to 100 mg/L from an initial value of 6600 mg/L whereas in case of Methocel membrane COD was only reduced to 390 mg/L.

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The Impact of Process Sequences on Pollutant Removal Efficiencies in Tannery Wastewater Treatment

Cited by 14 publications

References 45 publications

Utilizing aluminum etching wastewater for tannery wastewater coagulation: performance and feasibility

Utilizing aluminum etching wastewater for tannery wastewater coagulation: performance and feasibility

Evaluation of the aerobic and anaerobic degradation of an industrial effluent from vegetable tannery processing of leather on batch reactors

Preparation and characterization of macroporous pure alumina capillary membrane using boehmite as binder for filtration application

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