Abstract
This study demonstrated the feasibility of implementing of MBR in pharmaceutical wastewater independently, and concluded different applications of MBR in industries. Membrane bioreactor (MBR) technology was a new wastewater treatment technology with a combination of membrane separation technology and biological treatment technology, which had unique advantages on pharmaceutical wastewater treatment. The modified membrane rector design provided a significantly lower concentration of NH3-N, Phosphorous, Total Nitrogen and COD around the membranes, and subsequently a more sustainable membrane performance due to much lower overall fouling rates. In this paper, the classification and structure of biological waste water treatment by using MBR technology were summed up along with some examples of MBR in industrial wastewater treatment, which was emphatically analyzed and discussed. Finally, the prospect of MBR in industrial wastewater treatment was described. The industrial wastewater was a high-strength wastewater which had characteristics of complicated constituents, high organics concentration, highly toxic.
Highlights
By the year 2025 it is expected that 60% of the world population will live with water scarcity if current water consumptions remain at the same current level [1]
Industrial wastewater is usually considered the high concentrations of wastewater, which is characterized by complex components including many kinds of organic pollutants, high values of CODcr and BOD5 and its volatility with differences, high NH3-N concentration, large chroma, toxicity and concentrations of high suspended solids [4]
The mixture inside the biological reactor pumped into the membrane after group parts, the mixture under pressure through the membrane of the water to be processed, and the remaining substance with the concentrated liquid is trapped into the reactor under reflux, filtered water system in the direction from inside to outside
Summary
By the year 2025 it is expected that 60% of the world population will live with water scarcity if current water consumptions remain at the same current level [1]. At the current level of domestic and international industrial wastewater treatment there are many reasons to use more SBR (Sequencing Batch Reactor) Act, CASS (Cyclic Activated Sludge System) Act, ICEAS (Intermittent Cycle Extended Aeration), oxidation ditch as the main contact oxidation process, but because of the waste water deposition of inhibitory substances and refractory organics, the treatment effects of these methods are not ideal. The membrane bioreactor (MBR) technology that comprises the activated sludge process and membrane technology has been recognized as a technology for advanced wastewater treatment. The membrane separation technology and bio-organic combination are new technologies of wastewater treatment. It utilizes membrane separation activated sludge and biochemical components of the reaction cell. Organic molecules trapped in place of the secondary settling tank, increase the concentration of activated sludge and ensure water quality, greatly strengthening the function of the bioreactor [5]
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