Regarding the design of the wastewater project in the leather industrial park, it is recommended to use a diversion aeration biological filter. The diversion aeration biological filter (CCB for short) allows the sewage to be aerated in the same treatment tank. →Sedimentation→Second aeration→Second sedimentation and other processes solve other sewage treatment processes that require four pools to complete. Especially under the condition of continuous water inflow, the interstitial aeration of water inlet → aeration → sedimentation → water outlet is realized. At the same time, sludge return is realized, and the entire operation is not idle. Its advantages are more prominent than other sewage treatment methods, and the treatment effect is particularly outstanding. Significantly, CCB sewage treatment equipment is an updated product of sewage treatment equipment such as AB method, SBR method, A2O method, contact oxidation method, two exposures and two sinks, and interstitial aeration. In November 2009, it was listed as an "innovation project" by the Ministry of Science and Technology, project code 09C26215205564; in December 2009, the Ministry of Environmental Protection listed the product as a "Catalogue of Environmental Protection Technologies Encouraged by the State" (Environmental Development No. 2009146) ; In May 2010, the Ministry of Science and Technology, the Ministry of Environmental Protection, the Ministry of Commerce, and the General Administration of Quality Supervision, Inspection and Quarantine reviewed and identified the "Diversion Aerated Biological Filter" as a national key new product, with the number 2010GR46701.
CCB operates in Beijing, Shandong, Hebei, Guizhou, Shanxi, Sichuan, Inner Mongolia, Heilongjiang, Guangdong, Guangxi, Shaanxi, Gansu, Ningxia, Xinjiang, Jiangsu, Jilin, Henan, Hubei, Tianjin and other places in my country There are existing engineering examples, involving wastewater treatment in domestic, hospital, chemical industry, slaughter, food, flax, alcohol, pharmaceutical and other industries. A large number of applications have proved that the effluent water quality CODcr is generally below 20mg/L, with a minimum of 5.95mg/L; BOD5 is generally Below 10mg/L, the minimum is 3.50mg/L; SS is generally below 20mg/L, the minimum is 6.55mg/L.
CCB sewage treatment equipment fully draws on SBR method, AO method, A2O method, oxidation ditch method, activated sludge method and biological filter, biological turntable, biological contact oxidation and other biofilm methods and anaerobic digestion, It is an innovative process technology for intensive sewage treatment developed based on the design techniques of anaerobic biological treatment methods such as hydrolysis acidification and UASB and secondary or tertiary sewage treatment processes. In 2005, the State Intellectual Property Office approved it as a national patent product, patent number: ZL200420033672.4.
There are many manufacturers that design CCB, and I have visited many CCB sewage treatment projects. However, Guizhou Great Wall Environmental Protection and Chongqing Chutian Environmental Protection are more professional. They can design for free, advance construction, and pay up to standard. From scheme comparison to preliminary design, structure design calculation, structure design calculation, sewage plant master plan layout and design, the sewage process elevation system layout and design requires at least drawing A0 plan, elevation diagram and structure design drawings.