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Micro-nano catering waste water pretreatment process

A catering wastewater and pretreatment technology, which is applied in the direction of water treatment parameter control, adsorption water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of short residence time, substandard water quality, high failure rate, etc., and achieve the goal of improving the effect Effect

Inactive Publication Date: 2018-05-08
ANHUI TIANJIAN ENVIRONMENTAL PROTECTION
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Problems solved by technology

[0005] The purpose of the present invention is to solve the defects of poor separation effect, substandard water quality, short residence time, poor operation and maintenance, and high failure rate in the prior art, and provide a micro-nano catering wastewater pretreatment process to solve the above problems

Method used

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  • Micro-nano catering waste water pretreatment process

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Embodiment 1

[0022] Take the pretreatment of catering wastewater containing vegetable leaves, bones, vegetable roots, meat pieces, pork skin, rice grains, rice grains, broken bones, fish bones, and noodles as an example

[0023] Specific steps are as follows:

[0024] (1) After the kitchen and catering wastewater is collected, it will be discharged into the debris isolation area by gravity, and the large particles such as vegetable leaves, bones, vegetable roots, meat pieces, and meat skin in the wastewater will be separated and removed, and then the large particles will be sent to domestic waste. Collection point, centralized treatment at the transportation garbage station;

[0025] (2) Fine grains of rice, rice grains, broken bones, fish bones, and noodles in the waste water sink naturally along the 30°cone bucket, and are discharged to the residue storage tank with the help of vacuum suction, and the small particles in the residue storage tank are removed After crushing and drying, add...

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Abstract

The invention discloses a micro-nano catering waste water pretreatment process. The micro-nano catering waste water pretreatment process comprises the following steps: gathering kitchen catering wastewater to automatically flow into an impurity separation area by virtue of gravity, and separating and removing large-particle impurities in the waste water; settling small particles in the waste water along a 30-DEG conical hopper; when the waste water flows by the front end of an oil-water separation area, transporting ozone generated by an ozone generator to a micro-nano bubble generator, mixing the catering waste water and the ozone sufficiently under the effect of the micro-nano bubble generator, then circularly cutting, and generating micro-nano bubbles; absorbing, by the micro-nano bubbles in the waste water, suspended solids, forming the suspended solid cluster, and then enabling the suspended solid cluster to float on the surface of the water to form floating slag; and enabling the waste water to flow from the tail end of the oil-water separation area to a reaction static settling area, standing for 2 to 3 min, arranging a sampling valve on a water outlet end, monitoring, by the sampling valve, the water quality, and discharging the water after the water quality reaches the standard. The micro-nano catering waste water pretreatment process has the advantages of good treatment effect, up-to-standard water quality and the like.

Description

technical field [0001] The invention relates to the field of catering wastewater treatment, in particular to a micro-nano catering wastewater pretreatment process. Background technique [0002] The main components of catering wastewater are leftover food and water, with organic matter such as starch, dietary fiber, and animal fat as the main components. It has the characteristics of high nutritional content, high water content, high oil and salt content, and perishable fermentation and odor , if it is collected, transported and disposed of together with domestic waste, it will seriously affect the city appearance environment and residents' lives, and will also affect the final disposal effect of domestic waste; if it is directly discharged into municipal sewage pipes, it will become "waste oil". ", leading to blockage of the pipe network, affecting the subsequent sewage treatment process, causing corrosion and odor, and causing public sewage treatment failures. In addition,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/28C02F1/78C02F2001/007C02F2209/003
Inventor 孟行健王玉峰孟维俊
Owner ANHUI TIANJIAN ENVIRONMENTAL PROTECTION
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