CN1772657A

CN1772657A - Integrated reactor for continuous degradation, separation and stabilization of matrix

Info

Publication number: CN1772657A
Application number: CNA2004100888673A
Authority: CN
Inventors: 向连城
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-08
Filing date: 2004-11-08
Publication date: 2006-05-17

Abstract

The present invention has the biodegradation, deposition, filtering, adsorption, sludge stabilization and other treating units for sewage treating process combined together and completed inside the same sewage treating reactor. Inside the reactor, stuffing is filled, aeration is performed in the bottom, sewage flows in and out continuously for immersed treatment, biomembrane grows on the stuffing for continuous degradation, deposition, adsorption and filtering of organic matters and nutritive matters, and the biomembrane on the stuffing is decreased and stabilized. Through treatment for 30-90 days, the reactor is cleaned, and the sludge is exhausted and concentrated.

Description

Matrix continuous degradation, separation, stablize integrated reactor

Technical field

This invention is about municipal effluent, sanitary sewage or water quality Industrial Wastewater Treatment similarly, specifically is the biomembrance process in the biological sewage treatment, particularly at decentralized, small-scale sewage disposal mode.

Background technology

Generally be main processing means in the method for the treatment of city waste water with biological treatment, general step is primary sedimentation, biological treatment, secondary sedimentation in biological method for treating waste water, mud carries out stabilization again, each step is an independently unit, and whole Sewage treatment systems independently is made up of the unit each.Along with the development of sewage treatment technology, some sewage treatment process with each independently processing unit will carry out a biological disposal upon and secondary sedimentation is combined as the SBR method to combination together, but it is to divide the time intermitten service with each unit; BAF is biological contact oxidation metallization processes and a kind of technology that combines to water filtration process, need not establish settling tank, can obtain good effluent quality, but need establish back flushing pond and backwashing water settling tank, and the back flushing water yield is also bigger.

The processing unit division of labor clearly is difficult for exerting an influence between each unit in traditional sewage treatment process, is suitable for large-scale sewage treatment facility.

Its main drawback is: processing unit is many, and each processing unit is only finished function separately, and each cell processing efficient is not high, and is comparatively complicated for the small-scale sewage treatment facility.

Summary of the invention

Target of the present invention is: processing units such as the biological degradation in the sewage treatment process, precipitation, filtration, absorption, sludge stabilizing are combined, in a sewage-treating reactor, finish a plurality of sewage disposal functions, simplify treatment step, improve sewage treating efficiency, improve effluent characteristics.

In reactor, fill filler; At the reactor bottom aeration, water-in and water-out and submerged operation continuously in the reactor; Growth has microbial film on filler, organic matter and nutrition on microbial film by continuous degradation, precipitation, absorption, filtration, microbial film on the filler is by decrement, stabilization, clean after 30～90 days (the concrete time is determined according to entering organic matter of water and nutrient concentrations), spoil disposal, spoil disposal directly carries out mud and concentrates.

Filler is random packing, filler diameter 5～40mm; Filler sizes is divided some levels from large to small from feed-water end to the water side; Filler is shaped, makes the filler filling ratio less than 40%, and promptly voidage (or claim clearance rate, refer to the space that produces by between filler shape and the filler not comprise the inner hole that produces of filler material) is greater than 60%.The bigger useful space is arranged between filler inside and the filler, can store excess sludge for a long time and make it stabilization.

Reactor is axisymmetric shape (circular or square), and agitator is installed on reactor axis, and agitator is made up of motor, speed reduction unit, stirring arm, speed regulator etc.; The filler relative density is less than 1, in 0.90 to 0.95 scope; Reactor starts agitator earlier when cleaning spoil disposal, agitator drives the interior filler of reactor and water rotates along axle, and the shearing force that rotation produces makes the most of mud on the filler separate with filler.Clean back filler proportion less than water, float over the top of water; Mud proportion is bigger, sinks to the bottom.Then mud is entered sludge thickener or mud and concentrate in the car, in the mud concentration process,, can add an amount of flocculation agent or coagulant aids, improve mud and concentrate speed because sludge quantity is less.Water after the separation turns back in the reactor again, does not need backwashing water, back flushing tank and precipitation pond.

Different with vertical biological filter, sewage is level to flowing in reactor, and the sludge quantity that stores in the filler is higher than other sewage treatment process; Aeration from bottom to top, mud or be deposited on the filler or with bubble and rise to the water surface does not disturb water purification.

Description of drawings

1 is inlet valve among the figure; 2 is flowing water Valve; 3 for cleaning inlet valve; 4 is the mud discharging valve; 5 is submersible agitator, and agitator is by frequency conversion control device, speed reduction unit control rotating speed; 6 is floating stuffing, and 6.1 is the maximum filler of diameter, and 6.2 is the less filler of diameter, and 6.3 is the minimum filler of diameter; 7 is aerator, comprises air door and aeration tube, aeration head.

Embodiment

Matrix continuous degradation, separation, stablize integrated reactor when normal processing sewage,

Open valve

1,2, sewage enters from valve 1, organism and nutrition are through the degraded of the microbial film on the filler in the reactor, suspended substance in the sewage precipitates on filler, filters, and the mud that precipitates, is adsorbed on the filler accumulates the step minimizing of going forward side by side in reactor, and the water after the processing is by valve 2 water outlets, this moment, valve 3,4 was closed, and submersible agitator 5 stops.

Reactor increases at the sludge quantity of accumulation, aquifer yield reduces, when effluent quality descends, stop into water, enters cleaning, spoil disposal state.Valve-off 1,2,3,4,7; In reactor, add a certain amount of water, make in the reactor water level dotted line position in the figure, make filler that certain expansion space be arranged; Submersible agitator 5 fast rotational drive current and filler and rotatablely move, and churning time came off the mud on the filler at 5～10 minutes.Clean back filler proportion less than water, float over the top of water; Mud proportion is bigger, sinks to the bottom.

Open valve 3,4, submersible agitator 5 slowly runs, and mud is discharged from reactor bottom valve 4, and clear water or mud concentrated supernatant enter from reactor valves 3, and filler is carried out rinsing, and this moment,

valve

1,2,7 was closed.

After reactor spoil disposal, cleaning finish, promptly finish a work period, valve-off 3,4,

Open valve

1,2,7 carries out sewage disposal again.General work period operation 30～90 days.

Claims

In matrix continuous degradation, separation, stablize and fill filler in the integrated reactor; At the reactor bottom aeration, water-in and water-out and submerged operation continuously in the reactor; Growth has microbial film on filler, matrix on microbial film by continuous degradation, precipitation, absorption, filtration, microbial film on the filler is by decrement, stabilization, clean after 30～90 days (the concrete time is determined according to entering organic matter of water and nutrient concentrations), spoil disposal, spoil disposal directly carries out mud and concentrates.
2. filler is random packing, filler diameter 5～40mm; Filler sizes is divided some levels from large to small from feed-water end to the water side; Filler is shaped, makes the filler filling ratio less than 40%, and promptly voidage (or claim clearance rate, refer to the space that produces by between filler shape and the filler not comprise the inner hole that produces of filler material) is greater than 60%.
3. reactor is axisymmetric shape (circular or square), and agitator is installed on reactor axis, and agitator is made up of motor, speed reduction unit, stirring arm, speed regulator etc.; The filler relative density is less than 1, in 0.90 to 0.95 scope; Start agitator when reactor cleaning, spoil disposal earlier, agitator drives the interior filler of reactor and water rotates along axle, the shearing force that rotation produces makes the most of mud on the filler separate with filler, then mud is entered sludge thickener or mud and concentrate in the car, the water after the separation turns back in the reactor again.
4. sewage is level to flowing in reactor, and the sludge quantity that stores in the filler is higher than other sewage treatment process; Aeration from bottom to top, mud or be deposited on the filler or with bubble and rise to the water surface does not disturb water purification.