CN104628228A - Modular sewage treatment and reclamation method and device - Google Patents
Modular sewage treatment and reclamation method and device Download PDFInfo
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- CN104628228A CN104628228A CN201510056455.XA CN201510056455A CN104628228A CN 104628228 A CN104628228 A CN 104628228A CN 201510056455 A CN201510056455 A CN 201510056455A CN 104628228 A CN104628228 A CN 104628228A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
Abstract
The invention belongs to the technical field of sewage treatment, and particularly relates to a modular sewage treatment and reclamation method and device. The device is in an integrated box structure and comprises a box body, wherein the box body is sequentially provided with a pre-precipitation chamber, a pre-dephosphorization coagulative precipitation chamber, a denitrification biological chamber, a combined nitration reaction chamber and a disinfection chamber from left to right; and the side of the box body is provided with a sludge treatment chamber. The device can perform sewage treatment and effluent water reclamation to achieve the sewage discharge indexes. The sludge generated by sewage treatment is concentrated, dehydrated and transported outside. The method and device are mainly used for integrated treatment of minitype sewage.
Description
Technical field
The invention belongs to technical field of sewage, particularly relate to method and the device of a kind of modularization sewage disposal and reuse.
Background technology
Because municipal sewage treatment pushes ground, county-level city, county town and organic town to by key cities comprehensively, therefore, Sewage treatment systems changes from centralized on a large scale to middle and small scale distributing, form the layout of " based on large-scale; middle-size and small-size complementation ", this tallies with the national condition and development situation.This application and development being integral modular waste disposal plant provides new opportunity.At present, middle-size and small-size waste disposal plant on the market, the scaled down version of the activated sludge process that direct employing is traditional, processing links comprises: equalizing tank → settling pit → Aerobic Pond → second pond → water outlet etc., also exist and take up an area the shortcomings such as large, cost is high and production cycle is long, running maintenance is complicated, effluent quality is poor, far do not catch up with township industry and the town dweller community speed of development.
Retrieving information discloses: 1. application number 20122206330726.6 " carrying oil removal integral type sewage captation " is mainly applicable to underground automobile garage draining after catch pit collection, lifting drain into outdoor, then discharges after oil trap oil removal process.This device narrow application range, after process, sewage directly discharges, and does not carry out reuse.2. patent No. ZL03133960.3 " a kind of heterogeneous multiple catalyzing electrolysis oxidation sewage treatment method and device ", adopts gas phase catalyst, liquid-phase catalyst, and the processes such as application electrolysis, electrooxidation, electricity flocculation combine.It is complicated to there is operation in this device, the problem that current consumption is high, equipment maintenance cost is high.
Summary of the invention
The object of the invention is to: overcome prior art shortcoming, a kind of method of samll cities and towns, rural sewage treatment is provided, be applicable to floor space little, running cost is low, anti-variation water quality impact capacity is strong, and ensure that effluent quality is excellent, waste water reclamation rate is high, reclaim water quality and reach GB/T 50335-2002 " reuse of wastewater engineering design code " urban afforestation Water Quality Control Indexes, realize green energy conservation target.
The object of the present invention is achieved like this: the device of a kind of modularization sewage disposal and reuse, this apparatus structure is integral type body structure, comprise box-like body, described box-like body sets gradually preliminary sedimentation room, pre-dephosphorization coagulating sedimentation room, denitrification biotron, combined type nitration reaction room and sterilized room from left to right, at casing sidepiece, sludge disposal room is set, described box-like body front portion arranges sewage water inlet pipe, and rear portion then arranges rising pipe; Described preliminary sedimentation room arranges rotary type tooth harrow grid maker, grid maker is arranged the fine fack of pitch≤2cm; Described pre-dephosphorization coagulating sedimentation chamber interior is arranged to coagulation district, settling region and sludge condensation district, and installation arranges hydraulic solid-liquid two phase separator; Described denitrification biotron is inner uniform is filled with haydite; Peltate filler is loaded on the left of described combined type nitration reaction indoor, described peltate filler is made up of fibrous bundle and axial cord, fibrous bundle is made up of fiber and support in the form of annular discs, support pottery is made and is arranged hole in centre, in the middle of described axial cord, nested plastics tubing is set, for fixed range and support fibrous bundle; Hollow fiber film assembly is filled with on the right side of combined type nitration reaction room; Bottom is provided with the aerator of micropore, and controls aeration rate by the spinner-type flowmeter of band variable valve; In described preliminary sedimentation room, pre-dephosphorization coagulating sedimentation room, denitrification biotron, combined type nitration reaction room and sterilized room sidepiece shore pipe is set respectively, shore pipe is connected with sludge disposal room, arranges trilateral deposition bucket and variable-pitch propeller water extracter in described sludge disposal indoor.On-line monitoring pH meter, dissolved oxygen instrument and ammonia nitrogen instrument are set in described denitrification biotron; Arrange on-line monitoring pH meter, dissolved oxygen instrument, ammonia nitrogen instrument and COD instrument respectively in described combined type nitration reaction room and box-like body water outlet place, aforesaid device is connected with main control computer by network data line.Grid maker is arranged the fine fack of pitch 1cm.Medicament spray thrower is provided with at described top, combined type nitration reaction room.The inner haydite of described denitrification biotron is the cylinder of diameter 1.0 ~ 1.5cm, long 1.2 ~ 3.7cm, and haydite voidage is set to 46-50%, and cylinder body shape is nearly right cylinder.Described axial cord is that the material of Resistance to microbes is made.Described Hollow-fibre membranes material is polypropylene, and aperture is 0.01 μm, and membrane area is 1.0m
2.Medicament basket with trellis hole is set in described sterilized room.
Adopt said apparatus to carry out a method for sewage disposal and reuse, its implementation comprises the steps:
Step 1: sewage enters preliminary sedimentation indoor through water inlet pipe, remove after mechanical impurity through grid maker, it is indoor that step 2, sewage after step 1 processes enter pre-dephosphorization coagulating sedimentation, add biological flocculant 2-5 mg/L or Compound biological flocculant 10-30mg/L, the residence time: 15-20 minute, carry out flocculating, dephosphorization treatment; Step 3, through step 2 process after sewage enter denitrification biotron, control nitrated return current ratio of the mixed liquid 100%-300%, dissolved oxygen at 0.4-0.6 mg/L, residence time 3-5 hour; Step 4, that the sewage processed through step 3 enters combined type nitration reaction is indoor, and control reaction chamber dissolved oxygen at 4-5mg/L, steam-water ratio is at 12:1, and the residence time is 5-9 hour, carries out solid-liquid separation; Step 5, the sewage processed through step 4 enter in sterilized room, and sterilized room uses the slow release type trichloro-isocyanide uric acid disinfection of 200-500g/ sheet, dosage 5mg/L, and the residence time: 1-2 hour, water outlet can reach sewage discharge index; Dispose of sewage in step 6, each step above-mentioned produce sludge disposal, by shore pipe, enter in sludge treatment equipment, come together in trilateral deposition bucket, through sludge condensation, by variable-pitch propeller water extracter, dehydrated sludge transport outward.Described biological flocculant, Compound biological flocculant, trichloroisocyanuric acid are commercially available prod.
The principle of operation of present method: (1) pre-dephosphorization coagulating sedimentation reaction chamber, integrated design formula coagulation district, settling region, sludge condensation district composition.Integrated form coagulation district comprises the flocculation at a slow speed needed for increasing with the rapid coagulation of sludge reflux and alumen ustum, is made up of two continuous print regions.First step coagulation carries out and is stirred by an axial flow propulsor, to guarantee the energy required for rapid coagulation and coagulation in a perpendicular type region.Flocculation agent is added in perpendicular type region by medicament spray thrower.Carry out the outside sludge backflow of continuous print from sludge condensation district to first step coagulation district, high sludge concentration improves coagulation and phosphor-removing effect.Flocculate at a slow speed in Two Areas; The alumen ustum generated has higher density.Then water flow at a slow speed settling region to ensure the integrity of alumen ustum.Settling region adopts water conservancy solid-liquid two phase separator, and in this module, remaining alumen ustum is removed.Mud is collected by gravity or a mud scraper with sepiment.Partial sludge is back to coagulation district by a spiral pump.
(2) denitrification biotron: denitrification biotron dissolved oxygen controls at about 0.5mg/L, controls mixed liquid recycle ratio 100%-300%.
Design the residence time >=3.5 hours.Filler uses macrobead haydite, and haydite is the approximate circle cylinder of diameter 1.0 ~ 1.5cm, long 1.2 ~ 3.7cm, and voidage is 46%.This kind of filling intensity is high, surface porosity, and in-house network is crisscross, not easily hardens, and has very strong adsorptivity, is applicable to advanced treatment of wastewater.
(3) combined type nitration reaction room, left side filling peltate filler, packing density is 1/L.Filler is connected into a string with the rope of Resistance to microbes, is separated with ceramic ring between filler.Peltate filler has played the feature of half soft and soft-filler, specific surface area is large, the good porosity of biological attachment performance is high, after easy to be filmed and water suction volume mass slightly larger than advantages such as water.Reaction chamber is gas, water, solid three-phase, for microorganism creates abundanter existence form, part microorganic adhesion is on filler, and remaining is suspended in water, formed the new ecosystem with microbial film and active sludge two kinds of modes, and this system is interrelated in both direction in length and breadth.Combined type nitration reaction loads hollow fiber film assembly on the right side of room, and membrane area is 1.0m
2, bottom reaction chamber, micro-hole aerator is housed, and controls aeration rate by the spinner-type flowmeter of band variable valve.Control dissolved oxygen 3-6mg/L, design the residence time >=7 hours, gas-water ratio is at about 12:1.
(4) due to nitrification liquid backflow, the dissolved oxygen in compound nitration reaction room enters denitrification biological respinse room with nitrification liquid, forms double oxygen condition in inhalant region, top.Bottom is utilized and approach exhaustion by microorganism very soon due to the dissolved oxygen brought in reactor, forms complete anaerobic condition.Owing to using peltate filler, water flow velocity in reactor comparatively fast forms turbulent state, and do not install whipping appts and just can make fully to mix with backflow nitrification liquid into water, thus make system simplification, energy consumption reduces.
(5) in view of packaged unit variation water quality is large, medicament spray thrower is installed on top, compound nitration reaction room, water quality inferiority, or when being mixed with trade effluent, adds biological potentiating agent.This medicament is add the biological flora with specific degradation capability, and organic nutrient aganic nutrient agent is composited, and improves nitrification efficiency, reduces low temperature to the impact of nitrification.Recover from the denitrogenation tangleweed that impact load and sudden factor cause rapidly.
(6) sterilized room is provided with the medicament basket of trellis hole, built with the trichloroisocyanuric acid of slow release type, selects 200g/ sheet or 500g/ sheet.The sterilizing agent of the wide spectrum of this medicament a new generation, efficient, low toxicity and reodorant.Can regularly throw in, every Fang Shui needs about 5 grams medicaments, and sterilized room duration of contact is 1-2 hour.Its water outlet can direct reuse in greening or landscape water.
(7) pre-dephosphorization coagulating sedimentation room, the biological flocculant used is the polysaccharide bioflocculant of the ultra-high molecular weight of zymetology synthesis method synthesis, straight chain, a large amount of hydroxyls, the carboxyl of have ultra high molecular weight, growing, thus have extremely strong adsorption bridging and volume sweeps effect.Totally nontoxic, noresidue.Compound biological flocculant uses inorganic salt and biological flocculant optimization collocation, and product has efficiently simultaneously, strong adaptability, economical and practical feature, to turbidity removal, deodorizing, except COD, total nitrogen, total phosphorus effective.Use and rear subsequent processing units to be lightened the load.Added amount of chemical is generally biological flocculant 2-5 mg/L or Compound biological flocculant 10-30mg/L according to water quality.
Solid-liquid two phase separator is according to " vertical density flow solid-liquid separation " theory and technology, Xinjiang Dean Environmental Protection Technology Co., Ltd.'s independent research " hydraulic solid-liquid two phase separator " (be again called for short " the waterpower cheek ", utility model patent: ZL 2,011 2 0386130.5), carry out the hydraulic solid-liquid two-phase laminated flow of depositing technology.Apply sloping plate deposition and pipe chute precipitating equipment that this technology has broken conventional dual space incline structure, its sediment transport emptying effectiveness can improve 19% and 73% than the flat transverse section of swash plate and inclined pipe structrue respectively.
Beneficial effect: the deficiency that the present invention is directed to existing installation and technical configuration, by Wastewater Pretreatment, the system implementation of physical chemistry process, microbiological treatment, sterilization, sludge disposal is distributed rationally and Integration ofTechnology, make treatment unit compact construction, efficient, stable water outlet, working cost is low, and energy reuse, produce significant technique effect in practice.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the main TV structure schematic diagram of apparatus of the present invention; Fig. 2 is the main TV structure schematic diagram of combined type nitration reaction room in apparatus of the present invention; Fig. 3 is the main TV structure schematic diagram of peltate filler; Fig. 4 is the vertical view of peltate filler.Wherein: water inlet pipe 1, preliminary sedimentation room 2, pre-dephosphorization coagulating sedimentation room 3, denitrification biotron 4, combined type nitration reaction room 5, sterilized room 6, rising pipe 7, sludge disposal room 8, shore pipe 9, main control computer 10, aerator 11, peltate filler 12, hollow-fibre membrane 13, micropore 14, rotary type tooth harrow grid maker 15, hydraulic solid-liquid two phase separator 16, pH meter 17, dissolved oxygen instrument 18, ammonia nitrogen instrument 19, COD instrument 20, variable-pitch propeller water extracter 21, coagulation district 22, settling region 23, sludge condensation district 24, trilateral deposition bucket 28, axial cord 25, support 26, fibrous bundle 27, medicament spray thrower 29, medicament basket 30, haydite 31.
Embodiment
The device of embodiment 1, a kind of modularization sewage disposal and reuse, as shown in Fig. 1,2,3 and 4, this apparatus structure is integral type body structure, comprise box-like body, described box-like body sets gradually preliminary sedimentation room, pre-dephosphorization coagulating sedimentation room, denitrification biotron, combined type nitration reaction room and sterilized room from left to right, arrange sludge disposal room at casing sidepiece, described box-like body front portion arranges sewage water inlet pipe, and rear portion then arranges rising pipe; Described preliminary sedimentation room arranges rotary type tooth harrow grid maker, grid maker is arranged the fine fack of pitch≤2cm; Described pre-dephosphorization coagulating sedimentation chamber interior is arranged to coagulation district, settling region and sludge condensation district, and installation arranges hydraulic solid-liquid two phase separator; Described denitrification biotron is inner uniform is filled with haydite; Peltate filler is loaded on the left of described combined type nitration reaction indoor, described peltate filler is made up of fibrous bundle and axial cord, fibrous bundle is made up of fiber and support in the form of annular discs, support pottery is made and is arranged hole in centre, in the middle of described axial cord, nested plastics tubing is set, for fixed range and support fibrous bundle; Hollow fiber film assembly is filled with on the right side of combined type nitration reaction room; Bottom is provided with the aerator of micropore, and controls aeration rate by the spinner-type flowmeter of band variable valve; In described preliminary sedimentation room, pre-dephosphorization coagulating sedimentation room, denitrification biotron, combined type nitration reaction room and sterilized room sidepiece shore pipe is set respectively, shore pipe is connected with sludge disposal room, arranges trilateral deposition bucket and variable-pitch propeller water extracter in described sludge disposal indoor.On-line monitoring pH meter, dissolved oxygen instrument and ammonia nitrogen instrument are set in described denitrification biotron; Arrange on-line monitoring pH meter, dissolved oxygen instrument, ammonia nitrogen instrument and COD instrument respectively in described combined type nitration reaction room and box-like body water outlet place, aforesaid device is connected with main control computer by network data line.Grid maker is arranged the fine fack of pitch 1cm.Medicament spray thrower is provided with at described top, combined type nitration reaction room.The inner haydite of described denitrification biotron is the cylinder of diameter 1.0 ~ 1.5cm, long 1.2 ~ 3.7cm, and haydite voidage is set to 46-50%, and cylinder body shape is nearly right cylinder.Described axial cord is that the material of Resistance to microbes is made.Described Hollow-fibre membranes material is polypropylene, and aperture is 0.01 μm, and membrane area is 1.0m
2.Medicament basket with trellis hole is set in described sterilized room.Wherein, be that dividing plate separates between whole device room and room, water inlet is high-order water inlet, has liquid level difference 10cm between each room, realizes gravity flow water inlet, unpowered only have combined type nitration reaction room on the right side of hollow fiber film assembly need pump, band pressure runs.
Adopt said apparatus to carry out a method for sewage disposal and reuse, its implementation comprises the steps:
Step 1: sewage enters preliminary sedimentation indoor through water inlet pipe, removes after mechanical impurity through grid maker,
It is indoor that step 2, sewage after step 1 processes enter pre-dephosphorization coagulating sedimentation, adds biological flocculant 2-5 mg/L or Compound biological flocculant 10-30mg/L, the residence time: 15-20 minute, carries out flocculating, dephosphorization treatment;
Step 3, through step 2 process after sewage enter denitrification biotron, control nitrated return current ratio of the mixed liquid 100%-300%, dissolved oxygen at 0.4-0.6 mg/L, residence time 3-5 hour;
Step 4, that the sewage processed through step 3 enters combined type nitration reaction is indoor, and control reaction chamber dissolved oxygen at 4-5mg/L, steam-water ratio is at 12:1, and the residence time is 5-9 hour, carries out solid-liquid separation;
Step 5, the sewage processed through step 4 enter in sterilized room, and sterilized room uses the slow release type trichloro-isocyanide uric acid disinfection of 200-500g/ sheet, dosage 5mg/L, and the residence time: 1-2 hour, water outlet can reach Treated sewage reusing index;
Dispose of sewage in step 6, each step above-mentioned produce sludge disposal, by shore pipe, enter in sludge treatment equipment, come together in trilateral deposition bucket, through sludge condensation, by variable-pitch propeller water extracter, dehydrated sludge transport outward.
Described biological flocculant, Compound biological flocculant, trichloroisocyanuric acid are commercially available prod.
Embodiment 2, certain tourist attraction sewerage disposing station, process water yield 400m
3/ sky, be mainly the life in scenic spot, waste water that food and drink, service produce, collect in the equalizing tank of underground, wherein total influent quality is: PH is 7.5 ~ 8.5, COD be 237.12 ~ 578.64mg/L, BOD is 78.86 ~ 293.33mg/L, suspension content 46.71 ~ 245.23mg/L, total phosphorus 4.41 ~ 7.06mg/L, ammonia nitrogen 21.56 ~ 96.81 mg/L.
See Fig. 1-4, modularization sewage disposal and reuse method and device, its scenic spot sewage collected, use modularized processing device, first sewage enters preliminary sedimentation room by water inlet pipe, and use rotary type tooth harrow grid maker, fine fack, pitch is 1cm.Remove mechanical impurity through grid, enter pre-dephosphorization coagulating sedimentation room, add biological flocculant 2.5mg/L, carry out flocculating, dephosphorization, denitration process.
After solid-liquid two phase separator, water enters denitrification biotron, makes organic pollutant, and N, P content reduces.3.5 hours residence time of design, by controlling mixed liquid recycle ratio dissolved oxygen at 0.4-0.6 mg/L, form oxygen-anaerobism operation scheme of holding concurrently.
The water outlet of denitrification biotron enters compound nitration reaction pond, load peltate filler on the left of nitration reaction room, right side filling hollow fiber film assembly, microporous aeration device is equipped with in bottom, form gas, water, solid three-phase during operation, biophase more horn of plenty its be combined type nitration reaction room.Control reaction chamber dissolved oxygen at 4-5mg/L by micro-hole aerator, the design residence time is 7 hours, and steam-water ratio is at 12:1.Due to carbon/nitrogen/phosphorus disproportionate (100:5:1), BOD
5volumetric loading reach 5.0 ㎏/m
3* d, regularly adds biological potentiating agent, improves biological activity, makes to keep higher biomass in pond, utilize Immersive hollow fiber membrane, carry out solid-liquid separation, then enter sterilized room, sterilized room uses the slow release type trichloro-isocyanide uric acid disinfection of 500g/ sheet, dosage 5mg/L, and water outlet is used for greening.
In this device, denitrification biotron is equipped with on-line monitoring PH meter, dissolved oxygen instrument, ammonia nitrogen instrument; On-line monitoring PH, COD, dissolved oxygen, ammonia nitrogen instrument are equipped with in combined type nitration reaction room and water outlet place, the data of in-line meter pass through PLC machine, run fuzzy control program, pass through frequency transformer, Automated condtrol is carried out to water pump, blower fan, sludge reflux etc., completes and add my adjustment, pass through GSM network simultaneously, in PC terminal or mobile phone terminal reception, inquiry system operating parameter and guard signal, Long-distance Control can be realized.
This device residual active sludge is considerably less, and the mud of discharge is by shore pipe, and a part is by sludge reflux in pre-dephosphorization coagulative precipitation tank, and another part comes together in trilateral deposition bucket, after sludge condensation, regularly by variable-pitch propeller water extracter, and dehydration.For the fertilising of scenic spot greening after sludge composting after dehydration.
Water quality after process is: PH is 7.86, COD to be 29.87mg/L, BOD be 9.6mg/L, ammonia nitrogen 3.81 mg/L, total phosphorus 0.34mg/L, turbidity 1.34NTU, total dissolved solid 625.42mg/L.Effluent quality after process is better than standard GB 50332-2002 " regeneration effluent process engineering design code " 4.2.4 control indexes, for scenic spot greening, with road-cleaning.
The present invention is devoted to the process of middle-size and small-size sewage and the research of reuse technology and device, the operation being conceived to select to be applicable to this system is scientific, reasonableness, get a grip on a little, produce novel, efficiently, energy-conservation, compactly and be easy to the sewage disposal technology of operational management, applicable samll cities and towns and rural sewage treatment are applied, and strong shock resistance ensures the qualified object reaching reuse of water outlet.
Claims (10)
1. the device of a modularization sewage disposal and reuse, this apparatus structure is integral type body structure, comprise box-like body, described box-like body sets gradually preliminary sedimentation room, pre-dephosphorization coagulating sedimentation room, denitrification biotron, combined type nitration reaction room and sterilized room from left to right, at casing sidepiece, sludge disposal room is set, it is characterized in that: described box-like body front portion arranges sewage water inlet pipe, and rear portion then arranges rising pipe; Described preliminary sedimentation room arranges rotary type tooth harrow grid maker, grid maker is arranged the fine fack of pitch≤2cm; Described pre-dephosphorization coagulating sedimentation chamber interior is arranged to coagulation district, settling region and sludge condensation district, and installation arranges hydraulic solid-liquid two phase separator; Described denitrification biotron is inner uniform is filled with haydite; Peltate filler is loaded on the left of described combined type nitration reaction indoor, described peltate filler is made up of fibrous bundle and axial cord, fibrous bundle is made up of fiber and support in the form of annular discs, support pottery is made and is arranged hole in centre, in the middle of described axial cord, nested plastics tubing is set, for fixed range and support fibrous bundle; Hollow fiber film assembly is filled with on the right side of combined type nitration reaction room; Bottom is provided with the aerator of micropore, and controls aeration rate by the spinner-type flowmeter of band variable valve; In described preliminary sedimentation room, pre-dephosphorization coagulating sedimentation room, denitrification biotron, combined type nitration reaction room and sterilized room sidepiece shore pipe is set respectively, shore pipe is connected with sludge disposal room, arranges trilateral deposition bucket and variable-pitch propeller water extracter in described sludge disposal indoor.
2. the device of a kind of modularization sewage disposal according to claim 1 and reuse, is characterized in that: in described denitrification biotron, arrange on-line monitoring pH meter, dissolved oxygen instrument and ammonia nitrogen instrument; Arrange on-line monitoring pH meter, dissolved oxygen instrument, ammonia nitrogen instrument and COD instrument respectively in described combined type nitration reaction room and box-like body water outlet place, aforesaid device is connected with main control computer by network data line.
3. the device of a kind of modularization sewage disposal according to claim 1 and reuse, is characterized in that: grid maker is arranged the fine fack of pitch 1cm.
4. the device of a kind of modularization sewage disposal according to claim 1 and reuse, is characterized in that: be provided with medicament spray thrower at described top, combined type nitration reaction room.
5. the device of a kind of modularization sewage disposal according to claim 1 and reuse, it is characterized in that: the inner haydite of described denitrification biotron is the cylinder of diameter 1.0 ~ 1.5cm, long 1.2 ~ 3.7cm, haydite voidage is set to 46-50%, and cylinder body shape is nearly right cylinder.
6. the device of a kind of modularization sewage disposal according to claim 1 and reuse, is characterized in that: described axial cord is that the material of Resistance to microbes is made.
7. the device of a kind of modularization sewage disposal according to claim 1 and reuse, it is characterized in that: described Hollow-fibre membranes material is polypropylene, aperture is 0.01 μm, and membrane area is 1.0m
2.
8. the device of a kind of modularization sewage disposal according to claim 1 and reuse, is characterized in that: arrange the medicament basket with trellis hole in described sterilized room.
9. adopt device according to claim 1 to carry out a method for sewage disposal and reuse, it is characterized in that, its implementation comprises the steps:
Step 1: sewage enters preliminary sedimentation indoor through water inlet pipe, removes after mechanical impurity through grid maker,
It is indoor that step 2, sewage after step 1 processes enter pre-dephosphorization coagulating sedimentation, adds biological flocculant 2-5 mg/L or Compound biological flocculant 10-30mg/L, the residence time: 15-20 minute, carries out flocculating, dephosphorization treatment;
Step 3, through step 2 process after sewage enter denitrification biotron, control nitrated return current ratio of the mixed liquid 100%-300%, dissolved oxygen at 0.4-0.6 mg/L, residence time 3-5 hour;
Step 4, that the sewage processed through step 3 enters combined type nitration reaction is indoor, and control reaction chamber dissolved oxygen at 4-5mg/L, steam-water ratio is at 12:1, and the residence time is 5-9 hour, carries out solid-liquid separation;
Step 5, the sewage processed through step 4 enter in sterilized room, and sterilized room uses the slow release type trichloro-isocyanide uric acid disinfection of 200-500g/ sheet, dosage 5mg/L, and the residence time: 1-2 hour, water outlet can reach sewage discharge index;
Dispose of sewage in step 6, each step above-mentioned produce sludge disposal, by shore pipe, enter in sludge treatment equipment, come together in trilateral deposition bucket, through sludge condensation, by variable-pitch propeller water extracter, dehydrated sludge transport outward.
10. method according to claim 9, is characterized in that: described biological flocculant, Compound biological flocculant, trichloroisocyanuric acid are commercially available prod.
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| CN107285572A (en) * | 2017-08-04 | 2017-10-24 | 南京河海环境研究院有限公司 | A kind of biochemistry pool |
| CN110143651A (en) * | 2019-04-17 | 2019-08-20 | 濮阳可利威化工有限公司 | A kind of sewage sterilization system and its method |
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| CN110143651A (en) * | 2019-04-17 | 2019-08-20 | 濮阳可利威化工有限公司 | A kind of sewage sterilization system and its method |
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| CN104628228B (en) | 2016-09-07 |
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