CN1066128C

CN1066128C - Deep purifying and reclaiming appts. and method for industrial organic sewage

Info

Publication number: CN1066128C
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: 2001-05-23
Anticipated expiration: 2017-10-09
Also published as: CN1181358A

Abstract

The present invention relates to a deep purifying and recycling device and a method for industrial organic sewage, which has the technical scheme that a water purifying and recycling circulation system is formed by connecting a degradation anti-odor regulating tank, a water pump, a jet-flow gas mixing tank, an air compressor, a gas storage tank, a pressure contact oxidizing tower, a biological filtering tower, a biological active carbon tower, and an ultraviolet disinfector with a workshop through special-purpose pipelines; sewage is purified and is recycled in the methods of air compression, gas dissolving, microbial degradation, activated carbon adsorption, etc. The present invention can be widely used for food processing enterprises, textile processing enterprises, dye printing processing enterprises, silk processing enterprises, etc., and has obvious economic, social and ecological benefit.

Description

Industrial organic wastewater purification and recycling device

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 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 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.

This is a kind of organic sewage device for cleansing and recycling, by degraded deodorizing equalizing tank (1), equal water gas-distributing device (6), water pump (2), air compressor machine (4), one time jet mixes gas tank (3), pressure contact oxidation tower (7), air water separator (9), secondary jet mixes gas tank (24), biological filtering tower combined working (12), biological activated carbon tower (13), ultraviolet disinfector (14), the reuse pool (28) of purifying waste water, reuse water pressure pump (26), through special-purpose aqueous vapor process pipe (6,8,9,10,11,15,17,18,19,20,21,25,27) connect to form respectively, it is characterized in that having adopted degraded deodorizing equalizing tank, jet mixes the gas tank oxygenation, the pressure contact oxidation tower, biological filtering tower combined working, the biological activated carbon tower is the pressure-bearing tank body, the series combination structure, its annexation is that water pump (2) extracts the sewage in the degraded deodorizing equalizing tank (1), pressurization 0.5Mpa is conducted to waste pipe (17), waste pipe (17) links to each other with the water-in of a mixed gas tank (3) of jet, the inlet mouth that jet mixes gas tank is connected with compressed air pipe (6), should mix gas tank and be provided with two road water-supply pipes, the return line (18) of leading up to links to each other with equal water gas-distributing device (16), and another road is connected with pressure contact oxidation tower (7) by water-supply pipe (5); The pressure contact oxidation tower is provided with two road rising pipes, and the return line (18) of leading up to links to each other with equal water gas-distributing device (16), and another road links to each other with air water separator (22) by pipeline (21); The water outlet of air water separator links to each other with secondary jet carbo-charger (24) by pipeline, and connects air compressor by pipeline (10); The outlet of secondary jet carbo-charger links to each other with biofiltration tower (12) bottom by water pipe (11); The water outlet of biofiltration tower is on top, and water outlet is connected in the bottom of biological activated carbon tower (13) by pipeline (25); The water outlet on biological activated carbon tower top is connected in the feed-water end of ultraviolet disinfector (14) via rising pipe (23), the other end is connected in the rising pipe of purifying waste water (15), and passing to the water reservoir of purifying waste water (28), fresh water pump (26) links to each other with the water place of production plant by reuse water water-supply pipe (27).

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 metazoan (as nematode) in installing 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 synoptic diagram.

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 gas-water mixture (dissolved air water), and 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, has kept the hypermetabolism intensity of microorganism in the tower, and 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 the equal hydrophone of two tunnel, 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 atmospheric carbon dioxide 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 in molten gas, pressure, 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 finished absorption in the same space and regenerate two just, inverse process, make gac in absorption, just obtain regeneration.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. industrial organic wastewater purification and recycling device, by degraded deodorizing equalizing tank (1), equal water gas-distributing device (6), water pump (2), air compressor machine (4), one time jet mixes gas tank (3), pressure contact oxidation tower (7), air water separator (9), secondary jet mixes gas tank (24), biological filtering tower combined working (12), biological activated carbon tower (13), ultraviolet disinfector (14), the reuse pool (28) of purifying waste water, reuse water pressure pump (26), through special-purpose aqueous vapor process pipe (6,8,9,10,11,15,17,18,19,20,21,25,27) connect to form respectively, it is characterized in that having adopted degraded deodorizing equalizing tank, jet mixes the gas tank oxygenation, the pressure contact oxidation tower, biological filtering tower combined working, the biological activated carbon tower is the pressure-bearing tank body, the series combination structure, its annexation is that water pump (2) extracts the sewage in the degraded deodorizing equalizing tank (1), pressurization 0.5Mpa is conducted to waste pipe (17), waste pipe (17) links to each other with the water-in of a mixed gas tank (3) of jet, the inlet mouth that jet mixes gas tank is connected with compressed air pipe (6), should mix gas tank and be provided with two road water-supply pipes, the return line (18) of leading up to links to each other with equal water gas-distributing device (16), and another road is connected with pressure contact oxidation tower (7) by water-supply pipe (5); The pressure contact oxidation tower is provided with two road rising pipes, and the return line (18) of leading up to links to each other with equal water gas-distributing device (16), and another road links to each other with air water separator (22) by pipeline (21); The water outlet of air water separator links to each other with secondary jet carbo-charger (24) by pipeline, and connects air compressor by pipeline (10); The outlet of secondary jet carbo-charger links to each other with biofiltration tower (12) bottom by water pipe (11); The water outlet of biofiltration tower is on top, and water outlet is connected in the bottom of biological activated carbon tower (13) by pipeline (25); The water outlet on biological activated carbon tower top is connected in the feed-water end of ultraviolet disinfector (14) via rising pipe (23), the other end is connected in the rising pipe of purifying waste water (15), and passing to the water reservoir of purifying waste water (28), fresh water pump (26) links to each other with the water place of production plant by reuse water water-supply pipe (27).