Kitchen waste wastewater treatment system
A technology for wastewater treatment system and kitchen waste, applied in water/sewage treatment, biological water/sewage treatment, flotation water/sewage treatment, etc., can solve secondary pollution, dissatisfaction, short service life of reverse osmosis membrane, etc problem, to achieve the effect of reducing power consumption and saving costs
Active Publication Date: 2022-03-04
CHINA MACHINERY INT ENG DESIGN & RES INST
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Problems solved by technology
[0006] The invention provides a kitchen waste wastewater treatment system to solve the problems existing in the existing treatment system that do not meet the requirements of the "Class I Standard" of the "Comprehensive Discharge Standard for Sewage" (GB8978-1996), short service life of the reverse osmosis membrane, easy Technical problems that lead to secondary pollution and high operating costs
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[0039] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered below.
[0040] refer to figure 1 , a preferred embodiment of the present invention provides a kitchen waste wastewater treatment system, comprising: a multi-mode biochemical treatment device 2 sequentially arranged and communicated along the direction of waste water flow, a sedimentation mud storage device 8, an air flotation device 9 and an electrocatalytic reaction device 4. The multi-mode biochemical treatment device 2 is used for biochemical treatment of the incoming wastewater to remove COD, BOD, TN, NH in the wastewater 3 -N and TP. The water inlet of the sedimentation and sludge storage device 8 is connected with the water outlet of the multi-mode biochemical treatment device 2, so as to physically separate the effluent of the multi-mode biochemical treatment dev...
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Abstract
The invention discloses a kitchen waste wastewater treatment system which comprises a multi-mode biochemical treatment device, a sediment sludge storage device, an air floatation device and an electro-catalysis reaction device. The multi-mode biochemical treatment device is used for removing COD, BOD, TN, NH3-N and TP in the wastewater. The precipitation sludge storage device is used for physically precipitating the effluent of the multi-mode biochemical treatment device, so that the separated sludge part after precipitation returns to the multi-mode biochemical treatment device, and the supernatant enters the air flotation device after being added with a coagulant; subnatant separated by the air flotation device enters the electro-catalysis reaction device, and separated upper scum returns to the sediment sludge storage device for storage. The electro-catalytic reaction device is used for further reducing pollutants such as COD (Chemical Oxygen Demand) and NH3-N in the wastewater. According to the kitchen waste wastewater treatment system disclosed by the invention, effluent can stably meet the requirements of the'primary standard 'of the'integrated wastewater discharge standard', and the technical problem that a concentrated solution needs to be treated additionally when a'reverse osmosis membrane filtering device 'is used at present is solved.
Description
technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a kitchen waste wastewater treatment system. Background technique [0002] Wastewater after anaerobic fermentation and dehydration of food waste slurry, as well as waste water generated by other processes of food waste treatment, has complex components and is a high-concentration organic wastewater that is difficult to treat. The concentration of pollutants in wastewater is high, chemical oxygen demand (COD, 8000-20000mg / L), BOD 5 (4000~8000mg / L), total nitrogen (TN, 2000~3000mg / L), ammonia nitrogen (NH 3 -N, 1500~2500mg / L), total phosphorus (TP, 50~150mg / L), suspended solids (SS, >8000mg / L), salt content (15000~30000mg / L), animal and vegetable oil (800~1500mg / L), chromaticity (300-800 times), cellulose, protein, lipids and other refractory organic substances in wastewater account for a large proportion, and its carbon-nitrogen ratio (BOD 5 :TKN) is low, only 2:1~...
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IPC IPC(8): C02F9/14C02F101/16C02F101/30
CPCC02F9/00C02F1/24C02F1/46104C02F3/02C02F3/28C02F3/301C02F1/52C02F2101/30C02F2101/16Y02W10/10
Inventor 蒋剑虹唐清畅陶霞
Owner CHINA MACHINERY INT ENG DESIGN & RES INST