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Integrated advanced treatment reactor for restaurant waste water

A technology for advanced treatment of catering wastewater, applied in water/sewage treatment, biological water/sewage treatment, multi-stage water/sewage treatment, etc. The problem of land area and other issues can be achieved to reduce the occupied area, increase the load of sewage treatment, and achieve the effect of high space utilization

Pending Publication Date: 2019-08-30
TIANJIN MUNICIPAL HIGHWAY FACILITIES ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the influent water quality fluctuates greatly or the concentration of pollutants is high, although the process can maintain normal operation, it needs a large area, and the operation of sludge removal is complicated, time-consuming and laborious, which increases the operating cost

Method used

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  • Integrated advanced treatment reactor for restaurant waste water
  • Integrated advanced treatment reactor for restaurant waste water
  • Integrated advanced treatment reactor for restaurant waste water

Examples

Experimental program
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Embodiment 1

[0039] Using this device to treat catering wastewater in a shopping center in Beijing

[0040] Water quality: COD cr 2000~4000mg / L, BOD 5 1500~2500mg / L, SS 100~250mg / L, ammonia nitrogen 20~40mg / L, pH 6.0~8.0

[0041] Its processing steps are:

[0042] 1) Catering sewage is pumped to the electroflocculation tank 1 through the grease trap, the input AC is 220V~110V, the working voltage is 24V, the current is 10A~50A, the electrodes can be Fe, Al, the time interval between yin and yang is 3 hours, and the hydraulic retention Time 0.75h;

[0043] 2) The sedimented sludge at the bottom of the electrocoagulation tank is discharged;

[0044] 3) The supernatant in the electrocoagulation precipitation area overflows into the facultative tank 2, and the anaerobic microorganisms are in the state of hydrolysis and acid production, converting insoluble organic matter into soluble organic matter, and the hydraulic retention time is 3.5h;

[0045] 4) The muddy water in the facultative o...

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Abstract

The invention discloses an integrated advanced treatment reactor for restaurant waste water. The reactor comprises an electric flocculation tank which is provided with moveable battery lead plates with U-shaped ends and is provided with a plurality of triangular mud baskets at the bottom, a facultative tank constructed by baffle plates, space flow guide plates and water passing holes, a contact oxidization tank loaded with a biological fluidized bed, a novel settling pond formed by a combination of ultra-low pressure membranes and inclined lamellar precipitation and a water collecting tank. Water-flow design inside the reactor adopts overflow and baffling modes and no power equipment is adopted. The moveable battery lead plates with the U-shaped ends are convenient for adjustment of plateintervals and replacement and maintenance; the facultative tank adopting space design ensures reaction time and reduces sludge retention in the tank; the combination of gravity filtration effect of anultra-low pressure membrane group and the inclined lamellar precipitation of shallow layer precipitation theory improves the efficiency and saves floor space of the reactor. The integrated advanced treatment reactor for the restaurant waste water has the advantages of high efficiency, energy saving, material saving and land saving, and is suitable for the advanced treatment and reuse of various kinds of the restaurant waste water.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a catering wastewater treatment reactor. Background technique [0002] Catering wastewater refers to untreated wastewater discharged by the catering industry, mainly food preparation, tableware washing, leachate of food residues, etc. The main pollutants of catering wastewater are food fiber, starch, animal fat, animal and vegetable oil, and various condiments, detergents, proteins and other organic substances are the main components. At the same time, due to the complexity of dining personnel, there is also the problem of pathogenic bacteria pollution. Most of these substances exist in a colloidal state, and only a small part exists in a suspended state, which is characterized by a small amount and a large number of sources, complex components, and large changes in water quality. CODcr is generally 500-3500mg / L. Due to the complex composition and high concentration of pollutants in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/463C02F3/30C02F3/00C02F1/40C02F1/52
Inventor 李伯亮王颖王建陈明卢美玲李帅
Owner TIANJIN MUNICIPAL HIGHWAY FACILITIES ENG
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