Wastewater Treatment by Anaerobic Fluidized Membrane Bioreactor

Abstract

Domestic and industrial wastewaters are characterized by high organic content along with other diverse pollutants. Modern wastewater management comprises efficient removal of pollutants and gain energy to fulfil the discharge standards, protect the environment and sustain economic development. Until the last few decades, aerobic treatment technologies were dominant in wastewater treatment. Despite efficient treatment, large energy consumption for aeration, high operational cost and production of a great amount of sludge are the main drawbacks of aerobic systems. Wastewater treatment by anaerobic biological processes has many advantages over aerobic and other removal systems [1]. In addition to higher organic matter removal with less nutrient requirement, lower sludge production and energy-rich methane (CH 4) production are the main outcomes of anaerobic technologies. Various individual and combined anaerobic reactor systems have been successfully applied for the treatment of wastewater [2-5]. Anaerobic bioreactors contain a diverse microbial community, and slow-growing methanogens are very sensitive to changes in environmental conditions. In order to achieve the high treatment performance

Modified Clays as an Efficient Adsorbent for Brilliant Green, Ethyl Violet and Allura Red Dyes: Kinetic and Thermodynamic Studies

“…Various physical, chemical and biological processes are used for the remediation of dyes from wastewater. These processes include flocculation, coagulation, adsorption, ozonation, electrochemical destruction, irradiation and aerobic or anaerobic treatment [4,5]. However, the adsorption process for water purification is preferred because of its low cost and no extra sludge generation [6,7].…”