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A/O Integrated Aeration Biological Technology Treatment Sewage Efficiency of Study

Author: SongBo
Tutor: JiangWenLaiï¼›LaiYongBin
School: Chinese Academy of Agricultural Sciences
Course: Rural and Regional Development
Keywords: Activated sludge Biofilm Up-flow integration Biofilter
CLC: X703
Type: Master's thesis
Year: 2010
Downloads: 117
Quote: 0
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Abstract


With the development of the process of industrialization , water pollution especially in the vast rural areas account for nearly 90% of the country's total area . Due to the widespread use of chemical fertilizers, pesticides and other chemicals , resulting in many parts of the groundwater is not suitable for drinking , affect people's health and the development of the rural economy . In view of this , this paper presents an approach to the integration of A / O the aerated biological technology of sewage treatment method , the reduction of organic pollutants in water bodies , so as to achieve the purpose of the protection of water sources . Traditional A / O process design based on activated sludge , biofilm made ??of composite integration reactor , the reactor is divided into the anaerobic zone , aerobic zone and precipitation zone , its structure and the hydraulic operation of the form is based on biological Aerated Filter based . The method proposed in this paper to create a composite activated sludge and biofilm integration process , through the aerobic segment anaerobic time selection and reflux ratio adjustment , can improve the efficiency of the removal of organic matter , and the less amount of sludge produced . This article through a large amount of data obtained in the experiment , to determine the best technology of the device for sewage treatment to provide theoretical argument for this in real life , so that it can be more effective play to the advantage of its sewage treatment , and to improve capacity of sewage treatment in the removal of nitrogen , phosphorus and other substances .

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CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Wastewater treatment and utilization
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