CN1181358A

CN1181358A - Deep purifying and reclaiming appts. and method for industrial organic sewage

Info

Publication number: CN1181358A
Application number: CN97106119A
Authority: CN
Inventors: 李维宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-09
Filing date: 1997-10-09
Publication date: 1998-05-13
Anticipated expiration: 2017-10-09
Also published as: CN1066128C

Abstract

An apparatus for deeply puritying and recovering industrial organic sewage is composed of degradating and deodouring reulation pool, water pump, jet gas mixer, air ompressor, gas accumulating tank, pressure contact oxidation tower, biological filter tower, biological activated carbon tower, ultraviolet sterilizer and pipeline. Compressed air, dissolving gas, microbe degradation and activated carbon adsorption are used.

Description

Industrial organic sewage deep purifying reclamation set and method

The invention belongs to production waste to industries such as food-processing, organic chemical industry, textile printing and dyeing and silks and carry out advanced treatment and cyclically utilizing in the device and method of producing.

The bioremediation commonly used of centering lower concentration organic industrial sewage has technological methods such as biomembrance process, activated sludge process and bio-disc system, but these existing general class methods are in industrial practice, all be difficult to realize economically advanced treatment to sewage, have generally that pollutants removal rate is low, working cost is high, effluent characteristics is low and be back to production greatly ratio, it is big that used method has the facility floor space again, long processing period, problems such as the too high no commercial competitiveness of processing cost.And the existence of these problems is to cause the low principal element of the present water resources repeating utilization factor of China, and then causes China's shortage of water resources and quality of water environment to worsen.

Purpose of the present invention; be for improving the recycling level of enterprise water use; reduce the waste of water resources; a kind of device and method of protecting environment and researching and developing out, its method and technology technology advanced person, technological line is correct; the level of automation height; technical process is brief, and stable effluent quality makes sewage purification return to industry and uses preceding state.

To the effect that of the present invention: (1) organizational system has the equalizing tank of deodorization and pre-degradation function, and pollutants in sewage is just partly degraded in equalizing tank, has eliminated the stink of equalizing tank simultaneously, according to the sewage difference of the residence time in equalizing tank, COD _Cr(chemical oxygen demand) can remove 15-25%.(2) the big density filler filling of utilization pressure biological contact oxidation tower technological method, the semi soft packing density of being loaded in the pressure biological contact oxidation tower is 2.5 times that manual data is introduced traditional quantity, can guarantee that under this density the filler adhesion that is in operation does not have obstruction, adds that the other technologies measure doubles the degradation effect of this tower.(3) in the treatment unit stage casing, be provided with moisture separator, in time discharged the metabolism gas of microorganism, create conditions for refilling fresh air.(4) in facility operation, utilization " periodically vexed envelope is suffocated " scrubbing deinsectization technological method, eliminate a large amount of existence of the metazoan (as nematode) that has in the device and the harm that is produced, can guarantee the microbic activity of degrading in the device again, and helped dirt discharge in the device.(5) to used gac in the device, carrying out bio-regeneration with anaerobism, aerobic thing biology in original device handles, this method is than " pressure air-dissolving bio-regeneration gac " method, regeneration effect has improved 3 percentage points, the more important thing is overcome aforesaid method can not cancellation element in aerobic protozoon have and aggravation protista drawback that gac is polluted.(6) equalizing tank, biochemical tower intercommunication bacterium source in the treatment unit can replenish pond, tower bacterium source mutually, not only for the pre-degraded of equalizing tank provides necessary condition, have guaranteed the balance of water in the treatment system simultaneously when the discharge of sewage is not enough, and have made microbial film self-cleaning in the tower.

The effect of this device and method: this apparatus and method processing power is 100m ³/ h, its effluent quality returns to the level before using fully, the rate that recycles of water is 98%, a factory that produces 400 tons of White Steam Filature Yarns per year, save tap water after engineering is gone into operation and bought surplus the expense 70 ten thousand yuan, reduce effluent charge pay 40 surplus ten thousand yuan, and can also from waste water, reclaim heat energy, surplus being worth 10 ten thousand yuan, surplus year overall economic efficiency 120 ten thousand yuan, the more important thing is: after water of productive use recycles, when having saved great lot of water resources, reduced with the amount sewage emissions, to relaxing local shortage of water resources, alleviate environmental degradation and play very effective function, economy, society and ecological benefits are very remarkable.

Accompanying drawing: industrial organic sewage deep purifying reclamation set and method figure

Among the figure: 1 degraded deodorization equalizing tank, 2 promote water pump, and 3 one times jet mixes gas tank, 4 air compressor machines and gas-accumulating tank, 5 once molten gas water outlet main pipe lines, 6 pneumatic lines, 7 pressure contact oxidation towers, 8 blow dirty compressed air line, 9 evacuated tube, the molten air pressure of the 10 secondary jets air line that contracts, 11 secondary dissolved air water pipelines, 12 biological filtering tower combined workings, 13 biological activated carbon towers, 14 ultraviolet disinfectors, 15 outlet conduits of purifying waste water, 16 equal water gas-distributing device and fillers, 17 waste pipes, 18 return lines, 19 once molten gas time rising pipe, 20 production waste delivery pipes, 21 pressure contact oxidation tower rising pipes, 22 air water separators, 23 production plants, 24 secondary jet dissolvings, 25 biological filtering tower combined working rising pipes, 26 reuse water force (forcing) pumps, 27 reuse water water-supply pipes, 28 cleansing and recycling water water reservoirs.

This inventive embodiments: sewage is regulated degraded pond (1) temperature and the Pollutant levels of sewage is mixed adjusting, owing in the equalizing tank filler has been installed, molten gas oxygenation and continuous for the bacterium facility, sewage just purifies degraded in this adjusting stage.Sewage again by water pump (2) pressurization, is conducted to a jet aqueous vapor mixing tank (3) after this handles, sewage and pressurized air mix under the effusive effect repeatedly.Final blending is dissolved into super-saturated carbonated drink mixture (dissolved air water), dissolved air water one tunnel is delivered to equal hydrophone (16) in the equalizing tank for the equalizing tank oxygenating via going out waterside pipeline (19), another road via water outlet main pipe line (5) to pressure contact oxidation tower (7), sewage has these distinctive conditions of pressure, molten gas, oxygen enrichment and high-density packing in the tower internal cause, kept the hypermetabolism intensity of microorganism in the tower, the organism in the sewage is degraded fast.The filler of this tower is a semi soft packing.The oxidizing tower water outlet is divided into two the tunnel, the equal hydrophone of one routing pressure contact oxidation tower (7) return line (18) to the equalizing tank (1), another road via pipeline (21) to steam separator (22), the metabolism gas carbon dioxide packing of microorganism is separated and drains into atmosphere via evacuated tube (9) in the dissolved air water in separator (22), sewage is then delivered to secondary jet dissolving (24), and mix the fresh air of sending here by pipeline (10), form the secondary dissolved air water, this water is delivered to biofiltration tower (12) by pipeline (11), in this tower, removed the suspended substance in the water, simultaneously at molten gas, pressure, in this specific environment of oxygen enrichment, filtrate in the tower plays a part bio-carrier again simultaneously, filtering the continuation simultaneously water pollutant is degraded, the water outlet of this tower is delivered to biological activated carbon tower (13) via pipeline (25), because of biological activated carbon tower and biofiltration tower are in same molten gas, the environment of pressure oxygen enrichment, so the gac that is loaded in the biological activated carbon at one time, just finish absorption in the same space and just regenerated two, inverse process makes gac just obtain regeneration in absorption.Adopt anaerobion to carry out period treatment again to the regeneration of gac simultaneously, eliminated simple aerobe again and handled the pollutent that to eliminate, make gac obtain continuous forever the use, and keep the high absorption capacity state.The water outlet of biological activated carbon (23) is to ultraviolet disinfector sterilization (14), water through sterilization is deep purifying water, this water is delivered to cleansing and recycling pond (28) through pipeline (15), purify waste water and deliver to production plant (23) through fresh water pump (26) back pressure again, after using, Workshop Production becomes industrial sewage again, this industrial sewage drains into equalizing tank again via pipeline (20), goes round and begins again thus, constitutes water and decontamination cycle incessantly.

A whole set of refining plant forms the series circulation system by the industrial engineering installation requirement, and used starting material and equipment are industrial commercially available.The catalytic oxidation tower packing is commercially available semi soft packing.Gac is the commercially available prod but is treated to biological activated carbon through inoculation that the biological activated carbon volume is with the ratio of processing volume of water, carries out the anaerobism manipulation of regeneration at 50000: 1 o'clock.

The present invention can be widely used in the processing of industrial organic sewages such as food, weaving, printing and dyeing and throwing, has remarkable economical, society and ecological benefits.

Claims

1. device and method that is used for the reuse of industrial organic sewage deep purifying, mix gas tank, air compressor machine and gas-accumulating tank, pressure contact oxidation tower, biological filtering tower combined working, biological activated carbon tower, ultraviolet disinfector, equal water gas-distributing device, filler, air water separator, secondary jet dissolving, reuse water force (forcing) pump, cleansing and recycling water water reservoir and pipe special by degraded deodorization equalizing tank, water pump, a jet and form, it is characterized in that each device part is connected to become the reuse recycle system of purifying waste water by pipe special and workshop.

2. industrial organic sewage deep purifying reclamation set according to claim 1 and method is characterized in that mixing gas tank and the pressure contact oxidation tower is formed the sewage disposal internal circulation system by equal equal hydrophones of gas and jet.

3. industrial organic sewage deep purifying reclamation set according to claim 1 and method, it is characterized in that equalizing tank is adopted the method oxygenation that charges and discharge dissolved air water, and in the pond, arrange filler is installed, filling high-density packing in the oxidizing tower, its filler is a semi soft packing.

4. industrial organic sewage deep purifying reclamation set according to claim 1 and method is characterized in that the sewage disposal whole process all moves under pressure state, and implement the molten gas inflation of secondary oxygenating purifying the stage casing.

5. industrial organic sewage deep purifying reclamation set according to claim 1 and method is characterized in that gac is adopted two kinds of microorganisms of anaerobic-aerobic, replace the bio-regeneration recovery.

6. industrial organic sewage deep purifying reclamation set according to claim 1 and method is characterized in that the device facility is implemented vexed envelope by the cycle respectively, carry out the scrubbing deinsectization.