Advanced wastewater treatment system for cities and towns as well as industrial parks
An industrial park, advanced treatment technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of low TN and TP removal rate requirements, and achieve operating costs. low cost effect
Active Publication Date: 2015-06-03
TIANJIN UNITED ENVIRONMENTAL ENG DESIGN
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However, the process has lower requirements on the removal rate of TN and TP
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[0021] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The specific embodiments described are only for explaining the present invention and are not intended to limit the present invention.
[0022] Such as figure 1 As shown, a sewage advanced treatment system for towns and industrial parks of the present invention includes an ozone contact reaction device 1, a biological aerated filter 2, a denitrification deep bed filter 3, and a contact disinfection tank, which are sequentially connected by a structure connecting pipe 22 4; It also includes a blower 7, a backwash pump 8, a carbon source dosing device 9, a polyaluminum chloride dosing device 10 and a chlorine dosing device 11. The water inlet of the backwash water pump 8 is connected to the bottom of the contact disinfection tank 4 through a pipeline, and the water outlet of the backwash water pump 8 is connected to th...
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The invention discloses an advanced wastewater treatment system for cities and towns as well as industrial parks. The advanced wastewater treatment system comprises an ozone contact reaction device, a biological aerated filter, a denitrification deep-bed filter, a contact disinfecting pool, a blower, a backwash water pump, a carbon source addition device, a polymeric aluminum addition device and a chlorine addition device, wherein the ozone contact reaction device, the biological aerated filter, the denitrification deep-bed filter and the contact disinfecting pool are sequentially connected through structure connection pipelines. During the entire treatment process, the ozone contact reaction device is used for oxidation of hardly degradable macromolecular organics, transformation of the hardly degradable macromolecular organics into easily biodegradable low-molecular organics, as well as increase of the wastewater B / C ratio; highly-concentrated aerobic microorganisms are used in the biological aerated filter for degradation of BOD and COD in wastewater and oxidation of ammonia nitrogen; through the denitrification deep-bed filter, highly-concentrated obligate denitrification bacteria can be maintained for denitrification nitrogen removal of the wastewater discharged from the biological aerated filter; the contact disinfecting pool can ensure qualified microbiological indicators of the discharged wastewater. The advanced wastewater treatment system can be widely and massively promoted, the investment is reasonable, and the operating cost is low.
Description
Technical field [0001] The invention relates to a sewage advanced treatment system, in particular to a sewage advanced treatment system suitable for towns and industrial parks. Background technique [0002] At present, there are many processes used for advanced sewage treatment, but for the upgrading of existing water treatment plants and sewage treatment plants containing refractory organic pollutants, there is a lack of a set of technically feasible and economically reasonable upgrades that can be promoted on a large scale. Reform process. The existing advanced treatment methods and processes are generally as follows. [0003] (1) Membrane filtration technology, mainly including ultrafiltration, microfiltration, or double membrane (ultrafiltration, microfiltration + reverse osmosis membrane) treatment process. The membrane filtration process can ensure that the membrane filtered water meets the high standard discharge requirements, which is suitable for water treatment occasion...
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Inventor 孟建丽田泽祥庞维亮程丹丹张志扬刘京伟王梦南
Owner TIANJIN UNITED ENVIRONMENTAL ENG DESIGN