CN109264940A - A kind of multi-stag stabilization pond sewage water treatment method and system - Google Patents

A kind of multi-stag stabilization pond sewage water treatment method and system Download PDF

Info

Publication number
CN109264940A
CN109264940A CN201811492001.7A CN201811492001A CN109264940A CN 109264940 A CN109264940 A CN 109264940A CN 201811492001 A CN201811492001 A CN 201811492001A CN 109264940 A CN109264940 A CN 109264940A
Authority
CN
China
Prior art keywords
water
stabilization pond
settling zone
stag
sewage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201811492001.7A
Other languages
Chinese (zh)
Other versions
CN109264940B (en
Inventor
叶文彬
罗伶娟
任红萍
何曼妮
郭行
骆坚平
潘涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Longtao Environmental Technology Co Ltd
Original Assignee
Beijing Longtao Environmental Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Longtao Environmental Technology Co Ltd filed Critical Beijing Longtao Environmental Technology Co Ltd
Priority to CN201811492001.7A priority Critical patent/CN109264940B/en
Publication of CN109264940A publication Critical patent/CN109264940A/en
Application granted granted Critical
Publication of CN109264940B publication Critical patent/CN109264940B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • 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
    • 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
    • C02F3/308—Biological phosphorus removal
    • 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
    • C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
    • 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
    • C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00—Aeration of stretches of water

Abstract

The invention discloses a kind of multi-stag stabilization pond sewage water treatment method and systems.Stabilization pond is internally provided with vertical choking wall, stabilization pond is divided into and integrates water inlet settling zone, multilevel hierarchy area and the multi-stag combinative stability pool for being discharged settling zone, water stream channel is arranged in its choking wall bottom, channel two sides are installed by biologic packing material, multilevel hierarchy area configures non-equidistant aeration facility, at the same time, pass through building stabilization pond periphery vegetational zone and biological floating bed, passing sequentially through sewage into when the function divisions such as water settling zone, multilevel hierarchy area and water outlet settling zone, the removal of the pollutant in water body can be realized by the comprehensive function of microorganism and plant.The features such as this system enhances stabilization pond biological treatment function, has impact resistance strong by the measures such as biologic packing material of non-equidistant aeration facility, reasonable Arrangement, good treatment efficiency.

Description

A kind of multi-stag stabilization pond sewage water treatment method and system
Technical field
The invention belongs to environmental protection technologies, technical field of sewage, and in particular to a kind of multi-stag stabilization pond sewage Processing method and system.
Background technique
Stabilization pond is a kind of to be handled using natural detergent power sewage originating from early in the twentieth century American-European countries The general name of structures is mostly built using existing landform, and structure is simple, construction cost is low, operation maintenance management is simple and is easy to grasp Make, is a kind of good sewage treatment in China rural area and water shortage arid area and recycling approach.
According to the difference of microorganism dominant group type in the pool and pool water dissolved oxygen situation, stabilization pond is divided into aerobic ponds, simultaneous The property pool, anaerobic pond and aerated pond etc..Different types of stabilization pond is different to the removal efficiency of pollutant in water body.In processing sewage When, to ensure that every contamination index is reliably removed in sewage, is improved stabilization pond anti impulsion load ability, is generally required building Stabilization pond processing system improves COD, BOD in sewage5、NH3The removal rate of the items such as-N, TN, TP contamination index.However existing skill The stabilization pond mechanism of art is relatively simple, and is all to carry out sewage treatment using mechanical or building structure, does not comprehensively utilize various Resource, impact resistance is poor, in order to realize preferable wastewater treatment efficiency, generally requires the biggish processing system of occupied area, Irregular for the depth of water, the pond of ambient enviroment complexity, either installation or actual processing effect are all very limited.
Summary of the invention
In view of drawbacks described above existing for existing stabilization pond, the present invention passes through various to streamflow regime, aeration mode etc. It improves, realizes a kind of impact resistance multi-stag stabilization pond sewage disposal system and method, solve existing stabilization pond anti impulsion load energy Power is poor, treatment effect is bad and take up a large area, treatment effect is difficult to the problem of keeping for a long time.
Multi-stag stabilization pond sewage water treatment method of the invention, comprising the following steps:
S1: being respectively set choking wall in stabilization pond wastewater influent side and water outlet side, by stabilization pond be divided into water settling zone, Multilevel hierarchy area and water outlet settling zone, the choking wall lower edge and stabilization pond pool bottom vertical range are not less than 0.5m, form water flow Channel is installed biologic packing material within the scope of the 3m of water stream channel two sides and through influent side and is gone out after sewage enters stabilization pond water inlet settling zone The water stream channel of water side choking wall bottom passes sequentially through multilevel hierarchy area and water outlet settling zone；
S2: multiple line style aeration facilities are set in multilevel hierarchy area, form dissolution oxygen between adjacent aeration facility Interval, aeration facility area form dissolved oxygen mixing section, in dissolved oxygen layering section, as the intensification of the depth of water sequentially forms preferably Oxygen layer, anoxic layer and anaerobic layer；In dissolved oxygen mixing section, when being aerated facility unlatching, it is oxygenated into dissolved oxygen mixing section, it is dirty Water and microorganism are in the state that is thoroughly mixed from top to bottom, promote the contact of sewage and microorganism and dissolved oxygen, and then promote sewage The oxygenolysis of middle pollutant；
S3: stabilization pond periphery waterfront be sequentially arranged from shallow to deep very water, swim and submerged plant, building stabilization pond periphery is planted Object band；
S4: water inlet settling zone, multilevel hierarchy area and water outlet settling zone arrangement are biological floating bed.
Preferably, it also has the following steps before step S1:
S0: between dosing is arranged above stabilization pond, being arranged dispensation apparatus and dosing pump between dosing, carries out at dosing to water is entered Reason.
Preferably, the choking wall is rigid choking wall or flexible choking wall, wherein rigid choking wall take steel plate, One of brick or armored concrete, flexible choking wall take the form of top binding floating, bottom binding PVC coating cloth.
Preferably, stabilization pond water inlet settling zone hydraulic detention time is not less than 2h.
Preferably, the biologic packing material installed within the scope of the choking wall two sides 3m is suspension type filler, takes soft fibre One of filler, composite filling or elastic filler are tieed up, every filler beam cross-sectional diameter is between 120mm~200mm.
Preferably, the line style aeration facility being arranged in the multilevel hierarchy area is non-is equally spaced；In multilevel hierarchy The first half area in area, the spacing for being aerated facility two-by-two is 0.5 times~2 times of the depth of water, in the later half area in multilevel hierarchy area, is aerated two-by-two The spacing of facility is 2 times~5 times of the depth of water.
Preferably, the line style aeration facility being arranged in the multilevel hierarchy area is the upper, middle and lower three-layer set； It is 0m~2m that upper layer, which is aerated erection of equipment altitude range, and it is 3m~5m that middle layer, which is aerated erection of equipment altitude range, and bottom aeration is set Applying mounting height range is apart from pool bottom 0.5m~1.5m.
Preferably, in multilevel hierarchy area end, within the scope of last road line style aeration facility horizontal distance 1m~3m, Sludge reflux well is set, the mixed liquor of multilevel hierarchy area dissolved oxygen mixing section is back to stabilization pond water inlet settling zone water inlet end.
Preferably, spoil disposal facility is set in water outlet settling zone bottom, the deposit that stabilization pond generates periodically is discharged.
The invention also discloses a kind of multi-stag stabilization pond sewage disposal systems, it is characterised in that has used above-mentioned side Method.
It is designed by above structure and method, the present invention, which is realized, carries out function division in a stabilization pond, borrows simultaneously The biologic packing material of water stream channel two sides and the optimal setting of main reaction region aeration facility are helped, microorganism and water pollutant are promoted Contact and effect, so that the ability of lifting sewage treatment effect and anti impulsion load, saves land occupation；On the other hand, it introduces and stablizes The dual combination of microbiological treatment and plant purification is realized in pool periphery vegetational zone and biological floating bed, pollutant in enhanced sewage Removal efficiency has significant benefits of environment and economy.
Detailed description of the invention
Fig. 1 is the plan view using the stabilization pond sewage disposal system of the method for the present invention.
Fig. 2 is the diagrammatic cross-section of stabilization pond processing system.
Demixing zone schematic diagram in Fig. 3 multilevel hierarchy area.
Fig. 4 is stabilization pond water inlet settling zone dosing schematic diagram.
In Fig. 1,101 be sewage water, and 102 be stabilization pond water inlet pipe or inlet channel, and 103 be vegetational zone, and 104 is heavy for water inlet Shallow lake area, 105 be biologic packing material, and 106 be choking wall, and 107 be aeration facility, and 108 be multilevel hierarchy area, 109 be it is biological floating bed, 110 reflux wells, 111 be reflux pump, and 112 be return pipe, and 113 be water outlet settling zone, and 114 be stabilization pond outlet pipe or outlet canal.
In Fig. 2,101 be sewage water, and 102 be stabilization pond water inlet pipe or inlet channel, and 104 be water inlet settling zone, and 105 make a living Object filler, 106 be choking wall, and 107 be aeration facility, and 108 be multilevel hierarchy area, 109 be it is biological floating bed, 113 is go out water sedimentation Area, 114 be stabilization pond outlet pipe or outlet canal, and 115 are layered section for dissolved oxygen, and 116 be dissolved oxygen mixing section, and 117 set for spoil disposal It applies.
In Fig. 3,101 be sewage water, and 102 be stabilization pond water inlet pipe or inlet channel, and 104 be water inlet settling zone, and 105 make a living Object filler, 106 be choking wall, and 107 be aeration facility, and 108 be multilevel hierarchy area, and 115 are layered section for dissolved oxygen, and 116 be dissolution Oxygen mixing section, 117 be spoil disposal facility, and 118 be aerobic layer, and 119 be anoxic layer, and 120 be anaerobic layer.
In Fig. 4,101 be sewage water, and 102 be stabilization pond water inlet pipe or inlet channel, and 121 between dosing, and 122 be the dress that makes up a prescription It sets, 123 be dosing pump, and 124 be chemical feed pipe.
Specific embodiment
In conjunction with Fig. 1, Fig. 2, Fig. 3 and Fig. 4 to the present invention, a kind of multi-stag stabilization pond sewage water treatment method and system it is specific Embodiment is illustrated.
Stabilization pond sewage disposal system of the invention, including water inlet settling zone, multilevel hierarchy area and water outlet settling zone three Function division.Three function divisions are set gradually with drainage flow direction, and centre is separated by vertical choking wall, choking wall lower part Water passage is set, and biologic packing material is installed in water passage two sides.Three function division water surface arrangements are biological floating bed, while intaking Sewage water inlet pipe or inlet channel is arranged in settling zone top, and spoil disposal facility is arranged in bottom；Line style, non-etc. are set in multilevel hierarchy area Spacing is aerated facility, by the mixing section that multilevel hierarchy zoning is divided into dissolved oxygen layering section and dissolved oxygen is alternately present, end setting Mixed liquor is back into water settling zone by mixed liquor reflux pump；On water outlet settling zone top, sewage outlet pipe or outlet canal are set, Spoil disposal facility is arranged in bottom.
Sewage enters water inlet settling zone through water inlet pipe or inlet channel first, after the precipitating pretreatment of water inlet settling zone, passes through Water stream channel under the water inlet vertical choking wall in settling zone enters multilevel hierarchy area.In the multilevel hierarchy area be arranged line style, Multilevel hierarchy differentiation is turned to dissolved oxygen mixing section and dissolved oxygen is layered what section was alternately present by the non-aeration facility being equally spaced Reaction zone.Dissolved oxygen layering section and dissolved oxygen mixing section are alternately present in multilevel hierarchy area, dirty in dissolved oxygen mixing section when aeration Water and microorganism are in that the state that is thoroughly mixed, sewage and microorganism and oxygen come into full contact with from top to bottom, accelerate dirty water pollutant Decomposition and inversion；Dissolved oxygen layering Duan Yin lacks disturbance, by natural subsidence, sequentially forms in the depth of water direction of the water surface to pool bottom Aerobic layer, anoxic layer and anaerobic layer realize synchronous denitrification dephosphorizing effect.Sewage passes through multilevel hierarchy area, removes most of pollution After substance, water outlet settling zone is entered from the water stream channel under the vertical choking wall in multilevel hierarchy area water outlet, in water outlet settling zone After secondary precipitation, final outflow water outlet.
The vertical choking wall for separating three function divisions, lower edge are not less than with stabilization pond pool bottom vertical range 0.5m forms water stream channel in vertical choking wall lower part, installs biologic packing material within the scope of the 3m of water stream channel two sides.
The biologic packing material of the vertical choking wall water stream channel two sides is suspension type filler, and every filler beam cross-sectional diameter exists Between 120mm~200mm.
The water inlet settling zone, is discharged the biological floating bed of settling zone water surface arrangement at multilevel hierarchy area, accounts for each region water surface Area is within 50%.
The water inlet settling zone, the hydraulic detention time for being discharged settling zone are not less than 2h.
The sewage water inlet pipe of the water inlet settling zone entrance or inlet channel end, according to water water quality, selectivity setting is thrown Add the chemical feeding points of flocculant or flocculation aid.
The multilevel hierarchy area depth of water is 6m~12m.
In water inlet first half area of multilevel hierarchy area, the spacing for being aerated facility two-by-two is 0.5 times~2 times of the depth of water, in multistage point The later half area of floor area water inlet, the spacing for being aerated facility two-by-two is 2 times~5 times of the depth of water.When aeration, sewage in dissolved oxygen mixing section And microorganism is in that the state that is thoroughly mixed, sewage and microorganism and oxygen come into full contact with from top to bottom, accelerates dirty Organic substance in water Decomposition and inversion；And dissolved oxygen layering Duan Yin lacks disturbance, by factors such as natural subsidence, the limitations of oxygen delivery rate, in the water surface Aerobic layer, anoxic layer and anaerobic layer are sequentially formed to the depth of water direction at pool bottom, realizes synchronous denitrification dephosphorizing effect, wherein aerobic layer Depth bounds are 0m~0.5m, and anoxic layer depth bounds are 0.5m~2.5m, and anaerobic layer depth bounds are 2.5m~pool bottom depth.
The aeration facility be the upper, middle and lower three-layer set, upper layer be aerated erection of equipment altitude range be 0m~ 2m, middle layer be aerated erection of equipment altitude range be 3m~5m, bottom be aerated erection of equipment altitude range be apart from pool bottom 0.5m~ 1.5m.Three layers of aeration facility can be freely combined, and formed independent lower layer, independent middle layer, lower layer+upper layer, lower layer+middle layer, middle layer+ Upper layer and lower layer+middle layer+upper layer totally 6 kinds of installation forms.
The method of operation of the aeration facility can be continuous service, be also possible to intermittent duty, specifically by automatically controlling Program is controlled according to water quality indicator changing rule.
The stabilization pond can be sufficiently configured according to physical relief, within the scope of the nearly waterfront 2m of land and water boundary, according to The peripheral edge hillside fields shape depth of water arranges emergent aquactic plant, floating plant and submerged plant, building within the scope of 0.4m~2.0m from shallow to deep The sewage treatment system of collection pollutant degradation function and natural landscape function and one is realized in stabilization pond vegetational zone.
As shown in Figure 1 to 4, sewage water 101 first passes around stabilization pond water inlet pipe or inlet channel 102 enters water inlet precipitating Area 104.When the pollutant concentrations such as suspended matter, total phosphorus are higher in sewage, agent-feeding treatment, tool can be carried out in water inlet settling zone Body mode is to be arranged 121 between dosing above stabilization pond, 121 interior outfit dispensation apparatus 122 and dosing pump 123, flocculation between dosing After the completion of agent or flocculation aid configure in dispensation apparatus 122, by dosing pump 123 and chemical feed pipe 124 add to water inlet pipe or into 102 end of water channel, and by sewage flowing, mixed with sewage, the sewage after mixing to water inlet settling zone 104 in into Row natural subsidence.Spoil disposal facility 117 regular outlet of the sludge through 104 bottom of settling zone that intakes after sedimentation.Sewage is then by gear Wall 106 is flowed, is entered in multilevel hierarchy area 108 from water stream channel.Biologic packing material is set within the scope of the 3m of water stream channel two sides 105, the apposition growth microbial film on biologic packing material 105 is reduced dirty in water body using the microorganism of biologic packing material apposition growth Contaminate object concentration.
Line style, non-equidistant aeration facility 107 are set in multilevel hierarchy area 108, it is molten by being divided into multilevel hierarchy area 108 The reaction zone that solution oxygen interval 115 and dissolved oxygen mixing section 116 are alternately present, in dissolved oxygen layering section 115, with the depth of water Intensification sequentially forms as aerobic layer 118, anoxic layer 119 and anaerobic layer 120；In dissolved oxygen mixing section 116, when aeration facility It when 107 unlatching, is oxygenated into dissolved oxygen mixing section 116, sewage and microorganism are in the state that is thoroughly mixed from top to bottom, promote sewage With the contact of microorganism and dissolved oxygen, and then promote the oxygenolysis of dirty water pollutant.
Aeration facility 107 may be implemented to continue the function of aeration and intermittent aerating.When using being persistently aerated, in order to strengthen Denitrification effect can be 1m~3m range apart from last road line style aeration facility horizontal distance in 108 end of multilevel hierarchy area Interior setting reflux well 110, and pass through the reflux pump 111 disposed in well and return pipe 112 for sewage backflow to the settling zone 104 that intakes It is interior.When using intermittent aerating, when aeration, sewage is in mixed state entirely, when stopping aeration, dissolution in dissolved oxygen mixing section 116 116 natural layering of oxygen mixing section, it is final to realize layered effect same as dissolved oxygen layering section 115, i.e., with the intensification of the depth of water Sequentially form aerobic layer 118, anoxic layer 119 and anaerobic layer 120.
Later, the water stream channel for the choking wall 106 that sewage is arranged from 108 end of multilevel hierarchy area enters water outlet settling zone In 113, secondary precipitation is carried out in water outlet settling zone, spoil disposal facility 117 of the sludge after sedimentation through 108 bottom of multilevel hierarchy area Regular outlet.
Finally, purified water outlet is flowed out from water outlet settling zone 113 through stabilization pond outlet pipe or outlet canal 114.
Stabilization pond intakes settling zone and water outlet settling zone hydraulic detention time is not less than 2h, when multilevel hierarchy area hydraulic retention Between according to BOD5, the surface loading of the pollutants such as ammonia nitrogen it is determining and the stabilization pond depth of water determines, treatment effeciency up to 80% or more, Wherein remove BOD5Surface loading be up to 500kgBOD5/104(m2D), the surface loading of ammonia nitrogen is removed up to 200kgNH4 +-N/104(m2·d)。
In addition, can arrange corresponding vegetational zone 103 within the scope of the nearly waterfront 2m of stabilization pond land and water boundary, selected plant can To be floating plant, emergent aquactic plant or submerged plant；Stabilization pond water inlet settling zone 104, multilevel hierarchy area 108 and water outlet settling zone 113 arrangements biological floating bed 109, each local area ecological floating bed 109 accounts for water surface area within 50%.
Embodiment 1:
Sewage water CODCrConcentration is 200mg/L, BOD5Concentration is 100mg/L, and water water is 10000m3/ d, it is multistage The demixing zone depth of water is 10m.
1) stabilization pond occupied area is 10000m2。
2) stabilization pond is excavated according to existing landform, and equivalent pool width is 40m, and hierarchical multi-layer area overall length is 250m.
3) stabilization pond grade of side slope is 1:1, i.e. slope height: side slope width=1:1, and wherein slope height is equal to multistage point The floor area depth of water is 10m, then side slope width is 10m.
4) stabilization pond water inlet settling zone and water outlet precipitating section length are respectively 20m, then stabilization pond overall length is 290m.
5) water inlet settling zone and water outlet settling zone residence time are checked.Wherein water inlet settling zone and water outlet settling zone pool capacity are equal It is 2000m for 1/2 (the side slope width × multilevel hierarchy area depth of water × equivalent pool is wide)3, the water conservancy residence time is pool capacity/water water Amount × 24=4.8h.
6) use the non-aeration facility being equally spaced of line style, be arranged altogether 8 line styles aeration facility, from multilevel hierarchy area into The horizontal distance in water first half area to later half area, the 1st aeration facility arrangement vertical choking wall of stable distance pool influent side is the depth of water 0.5 times, later two-by-two line style aeration facility arrangement horizontal distance be respectively 1.5 times of the depth of water, 1.5 times, 2.5 times, 2.5 Again, 3.5 times, 3.5 times, 4.5 times, then the horizontal distances of 8 aeration facility stable distance pool influent side quantity choking walls are respectively as follows: 5m, 20m, 35m, 60m, 85m, 120m, 165m and 210m.
7) arrangement for being aerated facility uses bottom+middle layer arrangement.It is exposed from stabilization pond multilevel hierarchy first half area the 1st Gas facility calculates, and odd number trace aeration facility is arranged at the 0.5m of pool bottom, and even number road aeration facility is arranged at depth of water 5m.
Final outflow water COD is 18mg/L, BOD5For 6mg/L, the removal rate of COD is 91%, BOD5Removal rate be 94%, Total BOD5Surface loading be 94kg BOD5/104(m2·d)。
Embodiment 2:
Sewage water SS is 400mg/L, and total nitrogen 21mg/L, water water is 10000m3/ d passes through the water inlet pipe of DN800 Into stabilization pond, settling zone water outlet SS of intaking is 380mg/L, and removal rate is only 5%.Polymerization chlorine is added using in water inlet pipe end The mode for changing aluminium (PAC) and polyacrylamide (PAM) carries out coagulation to water, promotes removal of the water inlet settling zone to SS.
Wherein adding PAC amount is 30mg/L, and adding PAM amount is 1.0mg/L.The usage amount for calculating PAC is 300kg/d, PAM Dosage is 10kg/d.
2, PAC tank of belt stirrer, the PAM tank 2 of belt stirrer are configured between dosing is set above stabilization pond, between dosing A, as dispensation apparatus, single tank volume is 10m3。
Simultaneously at the interior setting PAC dosing pump of dosing 2, flow 250L/h, lift 30m；Setting PAM dosing pump 2, Flow is 100L/h, lift 30m.Configured PAC and PAM by pump, respectively the UPVC pipe through DN20 be delivered to DN800 into Water pipe end.
Reflux well is set in stabilization pond multilevel hierarchy area end, strengthens the removal of TN, 2 mixed liquors is installed in reflux well Reflux pump.Mixed liquor reflux pump uses submersible sewage pump, flow 700m3/h。
Stabilization pond settling zone water outlet SS of intaking is 20mg/L, and removal rate is improved from 5% to 92.5%, under final outflow water total nitrogen 8mg/L is dropped to, removal rate reaches 62%.
Finally it should be noted that: the above case study on implementation is only to illustrate the specific embodiment of technical solution of the present invention, Rather than its limitations；It will be understood by those of skill in the art that it can still modify to aforementioned embodiments or right Some or all of the technical features are equivalently replaced, and these are modified or replaceed, and do not make corresponding technical solution Essence to be detached from the present invention practical, all should be within the scope of protection determined by the claims.

Claims (10)

1. a kind of multi-stag stabilization pond sewage water treatment method, it is characterised in that the following steps are included:
S1: being respectively set choking wall (106) in influent side and water outlet side, and stabilization pond is divided into water settling zone (104), multistage Demixing zone (108) and water outlet settling zone (113), choking wall (106) lower edge are not less than with stabilization pond pool bottom vertical range 0.5m forms water stream channel, installs biologic packing material (105) within the scope of the 3m of water stream channel two sides, and it is heavy that sewage enters stabilization pond water inlet Behind shallow lake area (104), the water stream channel through influent side and water outlet side choking wall (106) bottom passes sequentially through multilevel hierarchy area (108) With water outlet settling zone (113)；
S2: the multiple line styles of setting are aerated facility (107) in multilevel hierarchy area (108), are formed between adjacent aeration facility molten It solving oxygen interval (115), aeration facility area forms dissolved oxygen mixing section (116), in dissolved oxygen layering section (115), with The intensification of the depth of water sequentially forms as aerobic layer (118), anoxic layer (119) and anaerobic layer (120)；In dissolved oxygen mixing section (116) In, when being aerated facility (107) unlatching, the oxygenation into dissolved oxygen mixing section (116), sewage and microorganism are in complete from top to bottom Admixture promotes the contact of sewage and microorganism and dissolved oxygen, and then promotes the oxygenolysis of dirty water pollutant；
S3: stabilization pond periphery waterfront be sequentially arranged from shallow to deep very water, swim and submerged plant, construct stabilization pond periphery plant Band；
S4: water inlet settling zone, multilevel hierarchy area and water outlet settling zone arrangement are biological floating bed.
2. multi-stag stabilization pond sewage water treatment method according to claim 1, it is characterised in that: before step S1 also Following steps,
S0: being arranged above the stabilization pond between dosing (121), dispensation apparatus (122) and dosing pump (123) be arranged between dosing, to entering Water carries out agent-feeding treatment.
3. multi-stag stabilization pond sewage water treatment method according to claim 1, it is characterised in that: the choking wall is rigid Property choking wall or flexible choking wall, wherein rigid choking wall takes one of steel plate, brick or armored concrete, flexible choking wall Take the form of top binding floating, bottom binding PVC coating cloth.
4. multi-stag stabilization pond sewage water treatment method according to claim 1, it is characterised in that: stabilization pond water inlet settling zone Hydraulic detention time is not less than 2h.
5. multi-stag stabilization pond sewage water treatment method according to claim 1, it is characterised in that: the choking wall two sides The biologic packing material installed within the scope of 3m is suspension type filler, takes one of soft cellulose filler, composite filling or elastic filler, often Filler beam cross-sectional diameter is between 120mm~200mm.
6. multi-stag stabilization pond sewage water treatment method according to claim 1, it is characterised in that: the multilevel hierarchy area The line style aeration facility of interior setting is non-is equally spaced；In the first half area in multilevel hierarchy area, the spacing for being aerated facility two-by-two is 0.5 times of the depth of water~2 times, in the later half area in multilevel hierarchy area, the spacing for being aerated facility two-by-two is 2 times~5 times of the depth of water.
7. multi-stag stabilization pond sewage water treatment method according to claim 6, it is characterised in that: the multilevel hierarchy area The line style aeration facility of interior setting is the upper, middle and lower three-layer set；Upper layer be aerated erection of equipment altitude range be 0m~ 2m, middle layer be aerated erection of equipment altitude range be 3m~5m, bottom be aerated erection of equipment altitude range be apart from pool bottom 0.5m~ 1.5m。
8. multi-stag stabilization pond sewage water treatment method according to claim 1, it is characterised in that: at multilevel hierarchy area end Sludge reflux well is arranged within the scope of last road line style aeration facility horizontal distance 1m~3m in end, and multilevel hierarchy area is molten The mixed liquor of solution oxygen mixing section is back to stabilization pond water inlet settling zone water inlet end.
9. multi-stag stabilization pond sewage water treatment method according to claim 1, it is characterised in that: in water outlet settling zone bottom Spoil disposal facility is set, the deposit that stabilization pond generates periodically is discharged.
10. a kind of multi-stag stabilization pond sewage disposal system, it is characterised in that used as described in claim any one of 1-10 Method.
CN201811492001.7A 2018-12-07 2018-12-07 Multi-stage stabilization pond sewage treatment method and system Active CN109264940B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811492001.7A CN109264940B (en) 2018-12-07 2018-12-07 Multi-stage stabilization pond sewage treatment method and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811492001.7A CN109264940B (en) 2018-12-07 2018-12-07 Multi-stage stabilization pond sewage treatment method and system

Publications (2)

Publication Number Publication Date
CN109264940A true CN109264940A (en) 2019-01-25
CN109264940B CN109264940B (en) 2019-12-10

Family

ID=65187197

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811492001.7A Active CN109264940B (en) 2018-12-07 2018-12-07 Multi-stage stabilization pond sewage treatment method and system

Country Status (1)

Country Link
CN (1) CN109264940B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111717995A (en) * 2019-03-19 2020-09-29 北京林业大学 Autotrophic denitrification artificial pond, construction method and method for denitrifying sewage by using artificial pond

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003039087A (en) * 2001-07-27 2003-02-12 Hitachi Kiden Kogyo Ltd Membrane separation type oxidation ditch
CN201190130Y (en) * 2007-12-03 2009-02-04 上海昀达环境工程有限公司 Aeration pipe arranging structure
CN104193073A (en) * 2014-07-21 2014-12-10 上海禾元环保集团有限公司 Horizontal multistage AO-vertical AAO ecological combination sewage treatment system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003039087A (en) * 2001-07-27 2003-02-12 Hitachi Kiden Kogyo Ltd Membrane separation type oxidation ditch
CN201190130Y (en) * 2007-12-03 2009-02-04 上海昀达环境工程有限公司 Aeration pipe arranging structure
CN104193073A (en) * 2014-07-21 2014-12-10 上海禾元环保集团有限公司 Horizontal multistage AO-vertical AAO ecological combination sewage treatment system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111717995A (en) * 2019-03-19 2020-09-29 北京林业大学 Autotrophic denitrification artificial pond, construction method and method for denitrifying sewage by using artificial pond

Also Published As

Publication number Publication date
CN109264940B (en) 2019-12-10

Similar Documents

Publication Publication Date Title
CN109264932A (en) A kind of process for town sewage treatment of the quasi- four class water of earth's surface up to standard
CN104710085B (en) A kind of efficient AOAS integrated sewage treating apparatus and its technique
CN106116045A (en) A kind of efficiently villages and small towns waste water treating and reutilizing device and technique thereof
CN110386723B (en) Sewage autotrophic treatment system and method based on MBBR and magnetic separation
CN104986917B (en) Landscape type integrated effluent disposal system
CN102020394B (en) Sewage treatment system
CN110127959B (en) Artificial wetland water purification method
CN105439286B (en) A kind of vertical current sewage ecological treatment system
CN212375119U (en) Sewage treatment system in multi-functional district
CN210457847U (en) Sewage full-effect treatment system based on MBBR and magnetic separation
CN218146053U (en) Container type sewage treatment equipment complete system
CN218146051U (en) A2O integration sewage treatment pond complete set system
CN107640828A (en) A kind of sewage-treatment plant
CN107129119A (en) A kind of biochemical treatment apparatus and technique for realizing high CO_2 density
CN109264940A (en) A kind of multi-stag stabilization pond sewage water treatment method and system
CN218146052U (en) Biochemical and physical integrated treatment tank for village and town sewage A2O
CN209161788U (en) A kind of town sewage treatment system of the quasi- four class water of earth's surface up to standard
CN203392987U (en) Z-type integrated sewage treatment pond employing gas stripping reflux and two-stage precipitation
CN215365350U (en) Railway station sewage treatment system
CN205313183U (en) Ecological processing system of vertical current sewage
CN205710299U (en) A kind of flow-type film mud coupling pond type denitrogenation dephosphorizing wastewater treatment equipment
CN115072873A (en) Sewage A 2 O-shaped integrated pond system and process method
CN210620522U (en) Sewage full-flow treatment system based on MBBR and magnetic separation
CN210419659U (en) Pond engineering recirculating aquaculture tail water centralized treatment system
CN104609553B (en) Co-peasant household type sewage treatment plant

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant