title: Detoxifying of high strength textile effluent through chemical and bio-oxidation processes.
abstract: Small-scale textile industries (SSTIs) in India struggled for the economic and environmental race. A full-scale common treatment plant (CETP) working on the principle of destabilising negative charge colloidal particles and bio-oxidation of dissolved organic failed to comply with Inland Surface Waters (ISW) standards. Thus, presence of intense colour and organics with elevated temperature inhibited the process stability. Bench scale treatability studies were conducted on chemical and biological processes for its full-scale apps to detoxify a high strength textile process effluent. Colour, SS and COD removals from the optimised chemical process were 88%, 70% and 40%, respectively. Heterotrophic bacteria oxidised COD and BOD more than 84% and 90% at a loading rate 0.0108kgm(-3)d(-1) at 3h HRT. The combined chemical and bio-oxidation processes showed a great promise for detoxifying the toxic process effluent, and implemented in full-scale CETP. The post-assessment of the CETP resulted in detoxify the toxic effluent.
authors: CSIR-National Environmental Engineering Research Institute, Nagpur 440 020, India. Electronic address: p_manekar@neeri.res.in.
authors: Pravin
authors: P
authors: Manekar
authors: CSIR-National Environmental Engineering Research Institute, Nagpur 440 020, India.
authors: Guarav
authors: G
authors: Patkar
authors: CSIR-National Environmental Engineering Research Institute, Nagpur 440 020, India.
authors: Pawan
authors: P
authors: Aswale
authors: CSIR-National Environmental Engineering Research Institute, Nagpur 440 020, India.
authors: Manisha
authors: M
authors: Mahure
authors: CSIR-National Environmental Engineering Research Institute, Nagpur 440 020, India.
authors: Tapas
authors: T
authors: Nandy
mesh_terms: D000818:Animals; D001673:Biodegradation, Environmental / Q000187:drug effects; D001681:Biological Assay; D052918:Environmental Restoration and Remediation / Q000379:methods*; D005399:Fishes / Q000502:physiology; D005427:Flocculation / Q000187:drug effects; D008658:Inactivation, Metabolic / Q000187:drug effects; D010084:Oxidation-Reduction / Q000187:drug effects; D013056:Spectrophotometry, Ultraviolet; D013784:Textiles; D018675:Toxicity Tests; D014865:Waste Disposal, Fluid; D014874:Water Pollutants, Chemical / Q000302:isolation & purification / Q000633:toxicity; D060753:Water Quality
chemical_list: D014874:Water Pollutants, Chemical
keywords: Bio-assay; CETP; Chemical treatment; SBR; Textile industry