نتایج جستجو برای: tannery industry wastewater
تعداد نتایج: 224593 فیلتر نتایج به سال:
Abstract Mismanagement of various wastes especially waste water produced by tanning processes has caused serious environmental problems and ultimately impaired human health. Constant efforts have been making to alleviate the pollution tannery wastewater (TWW), yet terminal treatment still takes dominance. In this review, research on TWW from 2000 2021 was summarized, main methods such as coagul...
Industries produce millions of cubic meters of effluent every year and the wastewater produced may be released into the surrounding water bodies, treated on-site or at municipal treatment plants. The determination of organic matter in the wastewater generated is very important to avoid any negative effect on the aquatic ecosystem. The scope of the present work is to assess the physicochemical c...
Background: Phenolic compounds are found in wastewater of many industries such as pulp and paper, textile, petrochemical, oil refineries, production of phenolic resins, plastics, coal furnace, tannery, rubber reclamation plant, fertilizers, coke, paints, rubber, decolorizer, resins, rubber and phenol- formaldehyde resin industries. This study aimed to evaluate Moving Bed Biofil...
Background and Objectives: Food industry wastewater has a high pollution load, which is due to water consumption at various stages. In the absence of adequate wastewater management and supervision of the food industry, this wastewater can be considered as a source of environmental pollution. This study aimed to optimize the coagulation and flocculation process for the treatment of food industry...
Few studies have assessed the effects of tannery effluents intake in mammalian animal models, despite the discharge of tannery effluents into water bodies without treatment are environmental and public health problems in many countries. This study therefore aimed to evaluate the effects of the mice parental generation exposure to tannery effluent on the anxiety and depression behaviors in its o...
The amount of wastewater depends on the technical level of process in each industry sector and will be gradually reduced with the improvement of industrial technologies. The increasing rates of industrial wastewater in developing countries are thought to be much higher than those in developed countries. This fact predicts that industrial wastewater pollution, as a mean environment pollution pro...
The aim of this work was the study of the combination of an inorganic pre-polymerized coagulant (PACl) with ferric species and polysilicic acid in various mixing order, Al/Fe/Si and OH/Al molar ratios, and two polymerization techniques for the production of a unique reagent representing a coagulant, more efficient than commercial PACl-18 and laboratory prepared PACllab for water or wastewater t...
Despite trivalent chromium’s manifold functionalities in industrial manufacturing processes, when it is improperly treated and disposed to the environment, due external environmental factors could get converted hexavalent chromium that has toxic effects on humans our environment. Hence, there a stringent need optimize current practices of handling, management, disposal. This paper puts forth in...
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