CN101618923B - Wastewater treatment method - Google Patents

Abstract

The invention relates to a wastewater treatment method for wastewater treatment in a self-developed integrated wastewater treatment device. The method comprises the following steps: starting an intake pump powered by a generator to pump wastewater to enter a header tank, pass by a water-filtering device and flow into an anaerobic tank; and starting anaerobic treatment, aerobic treatment, moving bed biological film reactor treatment, secondary sedimentation treatment, ozonic catalytic oxidation treatment and chlorine dioxide defection treatment. The invention adopts the integrated wastewater treatment device for the integrated wastewater treatment of the anaerobic treatment, the aerobic treatment, the moving bed biological film reactor treatment, the secondary sedimentation treatment, the ozonic catalytic oxidation treatment and the chlorine dioxide defection treatment, thereby ensuring the treated water quality and avoiding new environmental pollution while solving the problems of on-site water intake, on-site treatment and on-site recovery. The invention can be used for the wastewater treatment on temporary wastewater sites, such as temporary construction sites, emergent accident sites, disasterproof sites, disaster-reducing sites, and the like and is randomly used for irrigating lawns, green gardens and crops, flushing toilets, and the like.

Description

A kind of sewage water treatment method

Technical field

The invention belongs to technical field of sewage, especially a kind of sewage water treatment method.

Background technology

The northern area of China is in arid or semiarid state mostly, and water resources is nervous to becoming the main bottleneck of some regional economy fast developments of restriction China.The one side water resources shortage, a large amount of on the other hand raw sewerages can't use, but also environment and underground water are formed serious pollution.Be devoted in the whole world under the big atmosphere of environment protection, sewage treatment industry has become new industry, is in status of equal importance with production tap water, water supply, draining industry.

Find that through retrieval the patent No. is 02144524.9, publication number is CN1422817A, patent name is: anaerobism-oxygen-aerobic integratedization sewage water treatment method and the equipment for reclaiming patent of invention of holding concurrently, mention multiple sewage disposal and water process for reclaiming in the prior art in its specification sheets, but had deficiency separately respectively.The sewage disposal prior art that patent is mentioned comprises: the treatment process that adopts multistage equipment to control respectively, as: aerobic-aerobic-anaerobic treatment process; Rearmounted nitration processes is as: anaerobism (denitrification)-aerobic (holder organic carbon)-aerobic (nitrated)-be back to anaerobism section (partial discharge); Sequencing batch active sludge SBR technology; Serialization anaerobic-anoxic-aerobic treatment process; The Treatment for Reuse prior art that patent is mentioned comprises: the application in biological process, electrolytic process, chemical oxidization method, absorption method, material resources partition method, the organic organic chemistry settling process of disengaging inorganic salts, electroosmose process, reverse osmosis method and the membrane technique water Treatment for Reuse etc.At above-mentioned deficiency, this patent disclosure the anaerobism-oxygen of holding concurrently-aerobic integratedization sewage water treatment method and equipment for reclaiming, realize the anaerobism-oxygen-aerobic integratedization treatment process of holding concurrently by this equipment, this method can require to handle out different water quality according to different quality, can make sludge dewatering, avoid new environmental pollution.But this method relies on irremovable equipment owing to can not adapt to higher effluent quality requirement, can not handle interim building site, emergent accident and take precautions against natural calamities, the geographic sewage of on-fixed such as mitigation.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, a kind of sewage water treatment method is provided, this method has adopted integrated sewage treating apparatus, when guarantee handling back reuse water quality, avoiding new environmental pollution, has solved water intaking on the spot, on-the-spot disposal, the problem of reuse on the spot.

The present invention solves its technical problem and takes following technical scheme to realize:

A kind of sewage water treatment method carries out sewage disposal in integrated sewage treating apparatus, its step comprises:

(1) anaerobic treatment: preposition anaerobic treatment is inserted anaerobic pond with sewage, and by the anerobe acidifying that is hydrolyzed, larger molecular organics is degraded into small-molecule substance, realizes the removal of portion C OD;

(2) aerobic treatment: will enter Aerobic Pond and handle through the sewage of anaerobic treatment by aerobic bacteria; In Aerobic Pond, start Aeration fan, microbubble is directly injected the sewage of Aerobic Pond, under the effect of aerobic bacteria, organic matter degradation is become inorganics;

(3) moving-bed biofilm reaction treatment: the sewage after the aerobic treatment is inserted in the MBBR, and carrier parcel filler starts Aeration fan in the reactor, and carrier is in suspended state in MBBR, and is comprehensive free movable;

(4) secondary sedimentation is handled: the sewage after MBBR is handled is inserted second pond, through secondary sedimentation, filtration, removes suspended substance in second pond;

(5) catalytic ozonation is handled: the sewage after second pond is handled is inserted the catalytic ozonation pond, and ozonizer provides ozone to the catalytic ozonation pond, and the oxidation hardly degraded organic substance is further removed the material of difficult for biological degradation, obtains clear water;

(6) disinfect: the clear water after catalytic ozonation is handled is inserted clean water basin, and chlorine dioxide generator provides dioxide peroxide to clean water basin, clear water is carried out disinfection, to satisfy the chlorine residue requirement of clear water.

And the sewage in (1) after the preposition anaerobic treatment enters the further acidication of next anaerobic pond again, removes portion C OD.

And the sewage after (2) aerobic treatment enters next Aerobic Pond again and removes most COD.

And, (3) carrier is by spherical polypropylene material cast molding, the filler position of parcel is the porous and granular filtrate in the carrier, and its major ingredient comprises the irregular porous light weight particle of silicon, aluminium, calcium, sodium, magnesium, titanium, manganese, iron, nickel, cobalt and molybdenum ore material and trace element.

Advantage of the present invention and positively effect are:

1, the present invention is owing to adopted integrated sewage treating apparatus, the integrated sewage water that carries out anaerobic treatment, aerobic treatment, MBBR processing, secondary sedimentation processing, catalytic ozonation processing and disinfect is handled, reuse water quality after guarantee handling, avoid in the new environmental pollution, solved water intaking on the spot, on-the-spot disposal, the problem of reuse on the spot.

2, the present invention can be in time to interim building site, emergent accident and take precautions against natural calamities, on-fixed sewage scene such as mitigation carries out sewage disposal, is used for lawn, afforestation at any time, flushes the toilet and irrigation such as agricultural, saves a large amount of tap water; The greening water of urban road both sides, if adopt this method, water intaking on the spot, on-the-spot disposal, reuse on the spot can reduce a large sum of construction cost of laying pipeline, also has broad application prospects.

Description of drawings

Fig. 1 is a sewage water treatment method process flow sheet of the present invention;

The waste disposal plant synoptic diagram that Fig. 2 uses for sewage water treatment method of the present invention;

Fig. 3 is the A-A cross-sectional schematic of Fig. 1;

Fig. 4 is a COD index comparison diagram after raw waste water of the present invention, anaerobic treatment, the aerobic treatment;

Fig. 5 is raw waste water ammonia-nitrogen content of the present invention and clear water ammonia-nitrogen content comparison diagram.

Embodiment

Below in conjunction with accompanying drawing 1-5, and the invention will be further described to pass through specific embodiment, and following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.

Sewage water treatment method of the present invention is to carry out sewage disposal in the integrated sewage treating apparatus of development voluntarily:

Open intake pump by generator powered, throw sewage into water leg, passed through the water device sewage was flowed into anaerobic pond, the integrated sewage water that beginning anaerobic treatment, aerobic treatment, MBBR processing, secondary sedimentation processing, catalytic ozonation are handled and disinfected is handled, and its step comprises:

(1) anaerobic treatment: carry out preposition anaerobic treatment earlier, remove with biodegradability and the realization portion C OD that improves sewage.Sewage is inserted anaerobic pond, and by the anerobe acidifying that is hydrolyzed, majority of organic pollutants obtains degraded therein, realizes the removal of portion C OD; Sewage after the preposition anaerobic treatment enters the further acidication of next anaerobic pond again, remove portion C OD once more, majority of organic pollutants obtains degraded, because anaerobic treatment is consumption of power not, therefore preposition anaerobic treatment not only makes follow-up aerobic treatment significantly cut down the consumption of energy, and can alleviate the load of aerobic treatment;

(2) aerobic treatment: will enter Aerobic Pond and handle through the sewage of anaerobic treatment by aerobic bacteria; In Aerobic Pond, start Aeration fan, microbubble is directly injected the sewage of Aerobic Pond, under the effect of aerobic bacteria, organic matter degradation is become inorganics;

(3) MBBR is handled: the sewage after the aerobic treatment is inserted in the MBBR, in this reactor carrier is arranged, parcel filler in the carrier; Filler is the porous and granular filtrate, and its major ingredient is tens kinds of mineral substance such as silicon, aluminium, calcium, sodium, magnesium, titanium, manganese, iron, nickel, cobalt and molybdenum and trace element, and apparent is irregular particle, and color is a chocolate, the porous light weight; Start Aeration fan, carrier is in suspended state in MBBR, and is comprehensive free movable; The basic design philosophy of MBBR is to move continuously, does not stop up, and need not back flushing, and head loss is less, and bio-carrier has bigger swept area, can be by biofilm development on less carrier element.

(4) secondary sedimentation is handled: the sewage after MBBR is handled is inserted second pond, through secondary filtration, removes suspended substance in second pond;

(5) catalytic ozonation is handled: the sewage after second pond is handled is inserted the catalytic ozonation pond, and ozonizer provides ozone to the catalytic ozonation pond, and the oxidation hardly degraded organic substance is further removed the material of difficult for biological degradation, obtains clear water;

(6) disinfect: the clear water after catalytic ozonation is handled is inserted clean water basin, chlorine dioxide generator provides dioxide peroxide to clean water basin, clear water is carried out disinfection, to satisfy the chlorine residue requirement of clear water, reach various reuse requirements in water quality, water after handling the most at last is stored in the clean water basin, test through the water quality detection instrument, the index of handling back water is COD≤50mg/L, SS≤10mg/L ammonia nitrogen≤8mg/L, satisfy national standard, can be widely used in flushing the toilet, greening, carwash, flushing road surface, crop irrigation etc.

Influent quality index of the present invention and effluent quality index are relatively

The device preparation process that is used for above-mentioned sewage water treatment method:

The casing 31 that device selects for use automobile oil tank or glass reinforced plastic to make, Moveable lid body is arranged on the casing, four hangers 5 are fixed in the outer both sides of casing, each makes a call to a hole tank ends, one end connects water-in 1, the other end connects water outlet 19, the dividing plate made from glass reinforced plastic will be separated out water leg 2 from water-in to water outlet in the casing successively, reaction member and clean water basin 18, to begin to be divided into successively two anaerobic ponds 6 from neighbor set tank one end in the reaction member with dividing plate again, two Aerobic Ponds 9, a MBBR 12, a second pond 15 and a catalyzed oxidation pond 17, with the adjacent next reaction tank of current direction after handling in the reaction tank, the water device was arranged in each reaction tank for effectively; Wherein the water device of crossing in the anaerobic pond is made of anaerobism cloth tank 3 and anaerobism water distributor 4, and wherein anaerobism cloth tank is horizontally fixed on the dividing plate upper end, the bottom has a round, and row's anaerobism water distributor is perpendicular to lower end, anaerobism cloth bottom of gullet hole; Water device excessively in the adjacent Aerobic Pond with anaerobic pond is the aerobic cloth tank 8 that is horizontally fixed on the two pond adjacent separator; The mouth of a river 10 was arranged as crossing the water device between two Aerobic Ponds on the adjacent separator; The water device excessively of MBBR is the mouth of a river of crossing that is communicated with Aerobic Pond, and the water device excessively of second pond is that a port is positioned at MBBR, the another port is connected the second pond water inlet pipe 13 on the second pond pipe core 14; Make current direction catalytic ozonation pond after handling in the second pond near the second pond water outlet 16 of edge section on the dividing plate between second pond and the catalyzed oxidation pond, the orifice flow on catalytic ozonation pond and clean water basin adjacent separator is to clean water basin again.Be communicated with between second pond and the Aerobic Pond by return line 11 and be communicated with, return line variable valve 7 is arranged on the return line, so as the mud after second pond handled by return line flow to Aerobic Pond.

Aeration fan 26, intake pump 27, ozonizer 28 and chlorine dioxide generator 29 are arranged in the side space under the water leg in casing; Aeration fan is connected with blower fan import 30, provide air by metal or PVC aeration tube 22 for Aerobic Pond and MBBR, aeration tube regulated valve 23 is arranged on the aeration tube, the port of aeration tube lays respectively at bottom in Aerobic Pond and the MBBR, and is connected with aeration plate 25; Intake pump leads to water-in; Ozonizer leads to the catalytic ozonation pond provides ozone with the oxidation hardly degraded organic substance for it; Chlorine dioxide generator leads to clean water basin, provides dioxide peroxide to carry out disinfection to handling clear water, to satisfy the chlorine residue requirement of clear water.

Characteristics such as MBBR (MBBR) has the processing power height, takes up an area of less, compact construction, no sludge bulking, the core is to approach the floating stuffing of water as the microbic activity carrier with proportion, be added in the MBBR, as the microbic activity carrier, rely on the castering action of aeration and current, carrier is in suspends and fluidized state, can be comprehensive free movable, need not fix, only need to hold back net and get final product in the water outlet setting; Active carrier has corrosion resistant, advantages of high strength by the polypropylene material cast molding.The filler that is added in the carrier is the porous and granular filtrate, and its major ingredient is tens kinds of mineral substance such as silicon, aluminium, calcium, sodium, magnesium, titanium, manganese, iron, nickel, cobalt and molybdenum and trace element, and apparent is irregular particle, and color is a chocolate, the porous light weight; The proportioning of each composition needs the characteristics according to waste water quality, efficient composite flora in the filler, determine through overtesting, not only to improve the volume of holding (so that COD, ammonia nitrogen etc. are removed efficient more than 90%) that keeps microorganism on the carrier, prevent the microorganism rapid growth again and cause obstruction, and the treatment time is short, cuts down the consumption of energy and reduces surplus sludge volume.

The pump chamber 21 of depositing interim water pipe and pump, second pond mud discharging mouth 24 are arranged at the second pond bottom; There is drain 20 each lower end, side, pond.Reactor can be installed on the motor vehicle or be embedded in underground.

In active sludge, filter out microorganism and the artificial enlarged culturing of process that suitable processed pollutants in sewage is removed, be added to again in anaerobic pond, Aerobic Pond and the MBBR.

Sewage water treatment method principle of work of the present invention:

Sewage is through the anaerobic pond acidication, Aerobic Pond is handled, enter in the MBBR, majority of organic pollutants obtains degraded therein, by filter, remove suspended substance, enter the catalytic ozonation pond, the material of difficult for biological degradation is further removed, reached various reuse requirements in water quality.

Claims (3)

1. sewage water treatment method, it is characterized in that: carry out sewage disposal in integrated sewage treating apparatus, its step comprises:

(1) anaerobic treatment: preposition anaerobic treatment is inserted anaerobic pond with sewage, and by the anerobe acidifying that is hydrolyzed, larger molecular organics is degraded into small-molecule substance, realizes the removal of portion C OD;

(2) aerobic treatment: will enter Aerobic Pond and handle through the sewage of anaerobic treatment by aerobic bacteria; In Aerobic Pond, start Aeration fan, microbubble is directly injected the sewage of Aerobic Pond, under the effect of aerobic bacteria, organic matter degradation is become inorganics;

(3) moving-bed biofilm reaction treatment: the sewage after the aerobic treatment is inserted in the MBBR, and carrier parcel filler starts Aeration fan in the reactor, and carrier is in suspended state in MBBR, and is comprehensive free movable;

(4) secondary sedimentation is handled: the sewage after MBBR is handled is inserted second pond, through secondary sedimentation, filtration, removes suspended substance in second pond;

(5) catalytic ozonation is handled: the sewage after second pond is handled is inserted the catalytic ozonation pond, and ozonizer provides ozone to the catalytic ozonation pond, and the oxidation hardly degraded organic substance is further removed the material of difficult for biological degradation, obtains clear water;

(6) disinfect: the clear water after catalytic ozonation is handled is inserted clean water basin, and chlorine dioxide generator provides dioxide peroxide to clean water basin, clear water is carried out disinfection, to satisfy the chlorine residue requirement of clear water.

2. sewage water treatment method according to claim 1 is characterized in that: the sewage in (1) after the preposition anaerobic treatment enters the further acidication of next anaerobic pond again, removes portion C OD.

3. sewage water treatment method according to claim 1 is characterized in that: the sewage after (2) aerobic treatment enters next Aerobic Pond again and removes most COD.