CN102285734B - Comprehensive treatment device of low-concentration wastewater - Google Patents
Comprehensive treatment device of low-concentration wastewater Download PDFInfo
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- CN102285734B CN102285734B CN2011101504134A CN201110150413A CN102285734B CN 102285734 B CN102285734 B CN 102285734B CN 2011101504134 A CN2011101504134 A CN 2011101504134A CN 201110150413 A CN201110150413 A CN 201110150413A CN 102285734 B CN102285734 B CN 102285734B
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Abstract
The invention relates to a comprehensive treatment device of low-concentration wastewater. The comprehensive treatment device of low-concentration wastewater at least comprises a wastewater pre-treatment tank, a medium-and low-pressure reverse osmosis membrane treatment tank with operation pressure of 1-4 MPa, a high-pressure reverse osmosis membrane treatment tank with operation pressure of 7-20 MPa and an electrochemical treatment tank, wherein a municipal or industrial wastewater pipeline is connected to the inlet of the wastewater pre-treatment tank; the wastewater outlet of the wastewater pre-treatment tank is connected with the inlet of the medium-and low-pressure reverse osmosis membrane treatment tank through a pipeline; the purified water outlet of the medium-and low-pressure reverse osmosis membrane treatment tank is connected with a municipal or industrial reclaimed water pipeline; the wastewater outlet of the medium-and low-pressure reverse osmosis membrane treatment tank is separately connected with the inlet of the electrochemical treatment tank and the inlet of the high-pressure reverse osmosis membrane treatment tank; and the first wastewater outlet of the high-pressure reverse osmosis membrane treatment tank is connected with the inlet of the electrochemical treatment tank. The comprehensive treatment device of low-concentration wastewater provided by the invention can be used for treating wastewater at low cost and high efficiency to maximally reduce the water environmental pollution.
Description
Technical field
The present invention relates to a kind of waste disposal plant, especially a kind of low concentration wastewater Integrated Processing Unit.
Background technology
The common water yield of productive life low concentration wastewater is big; Pollutant load is low; Possesses reusable economy; Be divided into the sewage that focuses on via city domestic sewage treatment plant, or the comprehensive trade effluent from production technique handled of industrial sewage treatment plant, comprehensive trade effluent comes from such as chemical enterprises such as oil recovery, oil refining, petrochemical industry, electric power, metallurgy, automobile, shipbuilding, plating, printed substrate, dyeing and weaving and pharmacy, plastics, chemical fibres.Usually specific conductivity is in 1-10 milli siemens/cm; COD＜1000 mg/litre; The sewage of ammonia nitrogen＜100 mg/litre; The productive life waste water that pollution concentration is lower gets into biochemical treatment factory and office reason effluent standard usually, and biochemical processing process mainly is divided into three ranks, and the processing emphasis is an one-level: reinforced deposition; Secondary: strengthen decarburization; Three grades: denitrogenation dephosphorizing.What generally adopt now is the tertiary treatment technology on one-level secondary basis.
The main difficult point of tertiary treatment technology is denitrogenation; Because the denitrogenation in the ordinary student metallization processes realizes that through nitrated-denitrification nitration processes needs the oxygen of labor that the ammonia-state nitrogen in the waste water is oxidized to nitric nitrogen through nitrobacteria, under anaerobic state, be nitrogen with nitrate-nitrogen reduction then through denitrifying bacterium; Owing under good oxygen condition, consumed a large amount of carbon sources; And often facing carbon source at the denitrification state, basicity is not enough, can't enough nutrient reduction nitrogen be provided for denitrifying bacterium; Three grades of biochemical process of great majority need add carbon source (being generally methyl alcohol), and basicity is replenished.This contradiction makes that the tertiary treatment technical process is long, and efficient is low, the energy of labor.
Three grades of qualified discharge water can reuse, and can directly be used for greening as middle water, spray; Water coolant also can be used for more high-grade productive life water for high-grade water through conventional membrane process purification, but adopt conventional membrane technique to face a contradiction; The waste water water yield that is exactly the purification generation is big, and concentration is high, often becomes another source of pollution; To pollute required investment very big and administer this part, offset the economic benefit that the water recycling is brought.
Summary of the invention
The technical problem that the present invention will solve provides a kind of low concentration wastewater Integrated Processing Unit, to reduce or to avoid problem noted earlier.
Specifically; The invention provides a kind of low concentration wastewater Integrated Processing Unit; Said low concentration wastewater Integrated Processing Unit comprises Wastewater Pretreatment pond, mesolow reverse osmosis membrane processing jar, a high pressure reverse osmosis membrane processing jar and the electrochemical processing cell that working pressure is the 7-20 MPa that working pressure is the 1-4 MPa at least; Wherein, Municipal administration or trade effluent pipeline insert the inlet in said Wastewater Pretreatment pond; The wastewater outlet in said Wastewater Pretreatment pond is connected with the inlet of said mesolow reverse osmosis membrane processing jar through pipeline, and the treated water outlet of said mesolow reverse osmosis membrane processing jar connects municipal administration or industrial intermediate water pipeline, and the wastewater outlet of said mesolow reverse osmosis membrane processing jar connects the inlet of said electrochemical processing cell and the inlet of said high pressure reverse osmosis membrane processing jar respectively.
Preferably, said low concentration wastewater Integrated Processing Unit further comprises the condensing crystal jar, and the inlet of said condensing crystal jar is connected with second wastewater outlet of said high pressure reverse osmosis membrane processing jar.
Preferably, first wastewater outlet of said high pressure reverse osmosis membrane processing jar connects the inlet of said electrochemical processing cell, and the wastewater outlet of said electrochemical processing cell connects said condensing crystal jar.
Preferably; Said low concentration wastewater Integrated Processing Unit further comprises sludge treatment mechanism; The sludge outlet in said Wastewater Pretreatment pond is connected with said sludge treatment mechanism, and the wastewater outlet of said sludge treatment mechanism inserts the inlet in said Wastewater Pretreatment pond through pipeline.
Preferably; Said low concentration wastewater Integrated Processing Unit further comprises steam boiler; Said Wastewater Pretreatment pond further comprises a biochemistry pool that generates said methane waste product, and the methane waste product outlet of the methane waste product outlet in said Wastewater Pretreatment pond and said sludge treatment mechanism is respectively through the pipe connection roasting kiln of said steam boiler extremely.
Preferably, the vapour outlet of said steam boiler is through pipe connection to said condensing crystal jar.
Preferably, said low concentration wastewater Integrated Processing Unit further comprises thermal power generation mechanism, and the methane waste product outlet of outlet of the methane waste product in said Wastewater Pretreatment pond and said sludge treatment mechanism is respectively through the extremely said thermal power generation of pipe connection mechanism.
A kind of low concentration wastewater Integrated Processing Unit provided by the invention; After the low concentration wastewater processing that productive life produced; Can it be purified recovery more than 90%, remaining concentrated waste water can directly be handled qualified discharge, also can generate the solid state crystallization security landfill; The excess sludge that produces in the said low concentration wastewater Integrated Processing Unit working process can be treated to solid and come security landfill, thereby can realize zero release.
In addition, the methane gas that in said low concentration wastewater Integrated Processing Unit working process, generates also can be used for taking place the driving heat source of steam as mold, also can be used for generating, has effectively practiced thrift said low concentration wastewater Integrated Processing Unit to demands for energy.
Said low concentration wastewater Integrated Processing Unit has solved the handling problem of conventional three grades of wastewater treatment denitrogenation difficult problems and the dense water of conventional membrane sepn reuse technology; Through with water source, thermal source, comprehensive utilization of energy; Reach low-cost high-efficiency and handle waste water, reduce the target of water environment pollution to greatest extent.
Description of drawings
Following accompanying drawing only is intended to the present invention is done schematic illustration and explanation, not delimit the scope of the invention.Wherein,
What Fig. 1 showed is the structural representation according to the low concentration wastewater Integrated Processing Unit of a specific embodiment of the present invention;
Fig. 2 has shown an improved embodiment on the basis of Fig. 1;
Fig. 3 has shown an improved embodiment on the basis of Fig. 2;
Fig. 4 has shown an improved embodiment on the basis of Fig. 3.
Embodiment
To understand in order technical characterictic of the present invention, purpose and effect being had more clearly, to contrast description of drawings embodiment of the present invention at present.Wherein, identical parts adopt identical label, and the arrow among the figure is used to represent the throughput direction of ducted gas, liquid or solidliquid mixture.
What Fig. 1 showed is the structural representation according to the low concentration wastewater Integrated Processing Unit of a specific embodiment of the present invention; Low concentration wastewater Integrated Processing Unit 1 as shown in the figure can be used for the low concentration wastewater that municipal administration or trade effluent pipeline 2 discharged is handled, produce can directly be used for cleaning, the water of purposes such as water coolant flows to municipal administration or industrial intermediate water pipeline 3.Said low concentration wastewater Integrated Processing Unit 1 comprises that at least mesolow reverse osmosis membrane processing jar that Wastewater Pretreatment pond 11, working pressure are the 1-4 MPa 128, a working pressure are the high pressure reverse osmosis membrane processing jar 129 and the electrochemical processing cell 13 of 7-20 MPa; Wherein, Municipal administration or trade effluent pipeline 2 insert the inlet 111 in said Wastewater Pretreatment pond 11; The wastewater outlet 112 in said Wastewater Pretreatment pond 11 is connected with the inlet of said mesolow reverse osmosis membrane processing jar 128 through pipeline; The treated water outlet of said mesolow reverse osmosis membrane processing jar 128 connects municipal administration or industrial intermediate water pipeline 3, and the wastewater outlet of said mesolow reverse osmosis membrane processing jar 128 connects the inlet 131 of said electrochemical processing cell 13 and the inlet of said high pressure reverse osmosis membrane processing jar 129 respectively.
Can comprise thickness barrier, settling tank and biochemistry pool etc. in the said Wastewater Pretreatment pond 11; Be mainly used in low concentration wastewater is carried out pre-treatment; For example, can carry out the de-carbon biochemical treatment, remove COD and suspended substance in the low concentration wastewater through Wastewater Pretreatment pond 11.Behind the said Wastewater Pretreatment of the low concentration wastewater inlet 111 entering pond 11 of low concentration wastewater in municipal administration or the trade effluent pipeline 2 through said Wastewater Pretreatment pond 11; Can pass through coarse rack, fine fack deslagging and eddy current settling pit sediment outflow; So just can remove solids and oils such as the rubbish that influences biochemical treatment in the sewage and sand grains; Pollutents such as sand class are in the only more remaining waste water of deleterious, invisible organic pollutants after processing; Can remove the suspended matter that is deposited in the said low concentration wastewater through settling tank afterwards; Can also utilize the microbiological deterioration organic pollutant through biochemistry pool; Make organic pollutant by the saprophytic bacteria metabolism; Be converted into organic acid; Be methane and carbonic acid gas through anaerobic methanogen degraded organic acid then,, further said low concentration wastewater carried out carbon removal treatment to dispose all kinds of pollution substances in the sewage.
Waste water through after 11 processing of said Wastewater Pretreatment pond is discharged via wastewater outlet 112; Go into said mesolow reverse osmosis membrane processing jar 128 through pipe-line transportation; Be utilized under the effect that is higher than solution osmotic pressure, other materials can not see through the principle of semi-permeable membranes, and these materials and water sepn are come.Therefore the membrane pore size of the reverse osmosis membrane of said mesolow reverse osmosis membrane processing jar 128 is very little, can remove dissolved salts in the water, colloid, mikrobe, organism etc. effectively.Working pressure is that the mesolow reverse osmosis membrane processing jar 128 of 1-4 MPa adopts conventional mesolow reverse osmosis membrane technology; Can make through the waste water after 11 processing of said Wastewater Pretreatment pond and be cleaned with the 90% above recovery; Water body after the purification is for can be used as water coolant; Rinse water, the middle water of high quality purposes such as BW enters municipal administration or industrial intermediate water pipeline 3 via the treated water outlet of said mesolow reverse osmosis membrane processing jar 128.
Handle the concentrated waste water of residue that the back generates through said mesolow reverse osmosis membrane processing jar 128, can carry to said electrochemical processing cell 13, handle back up to standard discharging via first wastewater outlet 1281 of said mesolow reverse osmosis membrane processing jar 128.
Locality method rule are when saltiness has requirement in the waste discharge; Working pressure is that the high pressure reverse osmosis membrane processing jar 129 of 7-20 MPa can further purify the concentrated waste water of residue of handling the back generation through said mesolow reverse osmosis membrane processing jar 128; Purifying waste water of said high pressure reverse osmosis membrane processing jar 129 can enter municipal administration or industrial intermediate water pipeline 3; All the other waste water are concentrated by high pressure; Make the highly enriched waste water after the processing become the high-salt wastewater of specific conductivity more than 100 milli siemens/cm, reach zero liquid discharge thereby be beneficial to follow-up solidification treatment.
Used reverse osmosis membrane can adopt existing commercially available product among the present invention, and its structure and principle are known, no longer specifies.The technology contents relevant with reverse osmosis membrane can be with reference to US 5,250,185 A or US6, the description among 537,456 B2.
Membrane module in the above-mentioned reverse-osmosis treated jar can be selected the tubular fibre (HF) or the coiled reverse osmosis membrane (TFC) of standard for use, also can select butterfly tubular type reverse osmosis membrane (DTRO) etc. for use.
Residue waste water through said mesolow reverse osmosis membrane processing jar 128 generates is further imported electrochemical processing cell 13.Said electrochemical processing cell 13 can use the amounts of residual contamination do in the said residue waste water of the strong oxidizer oxidation that can produce a large amount of hydroxy radical qiaos; Hydroxy radical qiao can the direct oxidation organism; Generate carbonic acid gas and water; Its reaction formula is: (HO)+organism → CO2+H2O+H-+e-, this reaction can also indirect reaction generate ydrogen peroxide 50, the synchronous degradation of contaminant of strong oxidizers such as ozone simultaneously.Said electrochemical processing cell 13 can also comprise a chemical dephosphorization device, is used for degrading concentrating the phosphorus element content of waste water, can be up to standard after waste water is processed, and drain into municipal drainage pipeline 4 via the water port 132 of said electrochemical processing cell 13.Used electrochemical process for treating is a general knowledge known in this field among the present invention, no longer specifies at this.The technology contents relevant with electrochemical process for treating can be with reference to US 5,399, the description among 247 A.
Fig. 2 has shown an improved embodiment on the basis of Fig. 1; As shown in Figure 2; On basis embodiment illustrated in fig. 1; Low concentration wastewater Integrated Processing Unit 1 shown in Figure 2 further comprises condensing crystal jar 14, and the inlet 141 of said condensing crystal jar 14 is connected with second wastewater outlet 1292 of said high pressure reverse osmosis membrane processing jar 129.
That is to say; On Fig. 1 basis; After said high pressure reverse osmosis membrane processing jar 129 processing,, then can select that kind as shown in Figure 2 if the high-salt wastewater of the specific conductivity of producing more than 100 milli siemens/cm reaches the crystallization treatment standard; Residue after said high pressure reverse osmosis membrane processing jar 129 is handled concentrates waste water and discharges through second wastewater outlet 1292, further handles through the said condensing crystal jar 14 of inlet 141 entering of said condensing crystal jar 14 via pipeline.
Said condensing crystal jar 14 concentrates the waste water evaporative crystallization with said residue; Can be with entering municipal administration or industrial intermediate water pipeline 3 after the cooling of the moisture evaporation in the waste water; Handle the remaining solid matter in back and can carry out landfill, thereby can reduce pollution to greatest extent, realize the zero release of waste water for environment.Said condensing crystal jar 14 can comprise a pump feed evaporator; It utilizes recycle pump that concentrated waste water is circulated; The concentrated circulation velocity of waste water in heating tube within 1-3 meter per second scope, avoided formation fouling of ebullient fluid or generation crystallization on hot face usually.When circulation thickened waste current over-heat-exchanger, be heated, when the pressure of separator reduces, partly evaporate then, thereby thickened waste is water-cooled to the boiling temperature under should pressure.In crystallization was used, crystal can be through regulating circulation flow rate and adopting special separator designs from circulation crystal mud, to separate.
In a preferred embodiment, first wastewater outlet 1291 of said high pressure reverse osmosis membrane processing jar 129 connects the inlet 131 of said electrochemical processing cell 13, and the wastewater outlet 133 of said electrochemical processing cell 13 connects said condensing crystal jar 14.Said wastewater outlet 133 is through the inlet 141 of the said condensing crystal jar 14 of pipe connection.
If the waste water via after said high pressure reverse osmosis membrane processing jar 129 processing does not reach the crystallization standard; Then can enter said electrochemical processing cell 13 from first wastewater outlet 1291 of said high pressure reverse osmosis membrane processing jar 129; Reach after the crystallization standard inlet 141 that enters said condensing crystal jar 14 by said wastewater outlet 133 through electrochemical treatment and carry out evaporation process; In addition; Fail to handle the waste water that reaches emission standard in the said electrochemical processing cell 13 and also can be transported to said condensing crystal jar 14 and carry out evaporation process, thereby can handle the remaining solid matter in back and can carry out landfill entering municipal administration or industrial intermediate water pipeline 3 after the cooling of the moisture evaporation in the waste water; Thereby can reduce pollution to greatest extent, realize the zero release of waste water for environment.
Embodiment illustrated in fig. 2 and key distinction Fig. 1 is, in Fig. 1, through the waste liquid qualified discharge after can directly getting into electrochemical processing cell 13 decomposing pollutant after the reverse osmosis concentration after 11 processing of said Wastewater Pretreatment pond.And among Fig. 2, the waste liquid after handle in Wastewater Pretreatment pond 11 reaches the crystallization standard just can directly get into mold 14 after reverse osmosis concentration; If do not reach the crystallization standard, can be earlier handle getting into mold 14 again after reaching the crystallization standard through electrochemical processing cell 13, produce solid and be used for landfill, realize wastewater zero discharge.
Rest part embodiment illustrated in fig. 2 and embodiment illustrated in fig. 1 identical is given unnecessary details at this no longer one by one.
Fig. 3 has shown an improved embodiment on the basis of Fig. 2; As shown in Figure 3; On basis embodiment illustrated in fig. 2; Low concentration wastewater Integrated Processing Unit 1 shown in Figure 3 further comprises sludge treatment mechanism 15, and the sludge outlet 113 in said Wastewater Pretreatment pond 11 is connected with said sludge treatment mechanism 15, and the wastewater outlet 152 of said sludge treatment mechanism 15 inserts the inlet in said Wastewater Pretreatment pond 11 through pipeline.
The mud that said Wastewater Pretreatment pond 11 produces at wastewater treatment process; Sludge outlet 113 through said Wastewater Pretreatment pond 11 is via the inlet 151 of pipe-line transportation to said sludge treatment device 15, and gets into said sludge treatment device 15 and carry out further processed.Said sludge treatment device 15 can comprise a mesophilic digestion pond, in said mesophilic digestion pond, under the situation of starvation; Organism in the mud is before this by the saprophytic bacteria metabolism; Be converted into organic acid, anaerobic methanogen degraded organic acid is methane and carbonic acid gas then, and the temperature of whole process is controlled at 33～35 ℃ and carries out; So just can the organism in the mud be converted into than stable material through utilizing action of microorganisms.
Said sludge treatment device 15 can also comprise a mechanical dehydration device, and said mechanical dehydration device can further reduce the water cut of mud, and the dewatered sludge after the dehydration can further be handled through modes such as solid landfills.
In a preferred embodiment, the wastewater outlet 152 of said sludge treatment mechanism 15 inserts the inlet 111 in said Wastewater Pretreatment pond 11 through pipeline.Said sludge treatment device 15 can insert the low concentration wastewater inlet 111 in said Wastewater Pretreatment pond 11 through pipeline via the wastewater outlet 152 of said sludge treatment device 15 at the waste water that mud is carried out produce in the processed process, thereby can further handle waste water.
Rest part embodiment illustrated in fig. 3 and embodiment illustrated in fig. 2 identical is given unnecessary details at this no longer one by one.
Fig. 4 has shown an improved embodiment on the basis of Fig. 3; As shown in Figure 4; On basis embodiment illustrated in fig. 3; In the low concentration wastewater Integrated Processing Unit 1 shown in Figure 4, said low concentration wastewater Integrated Processing Unit 1 further comprises steam boiler 16, and said Wastewater Pretreatment pond 11 further comprises a biochemistry pool that generates said methane waste product.The methane waste product outlet 153 of the methane waste product in said Wastewater Pretreatment pond 11 outlet 114 and said sludge treatment mechanism 15 is the roasting kiln through pipe connection to said steam boiler 16 respectively.
Said Wastewater Pretreatment pond 11 further comprises a biochemistry pool that generates said methane waste product.Said biochemistry pool utilizes the microbiological deterioration organic pollutant; Make organic pollutant by the saprophytic bacteria metabolism; Being converted into organic acid, be methane and carbonic acid gas through anaerobic methanogen degraded organic acid then, thereby the organic pollution materials in disposing sewage generates methane simultaneously.
The article " discovery of LDO sludge slight expansion Energy saving theory and method, proposition and theoretical basis " that can deliver at 2008 " environmental science " 29 volumes 12 phases (3342-3347) with reference to Peng Yongzhen etc. about the correlation technique content of biochemistry pool or Wang Lei etc. roll up the article " hypoxemia catalytic oxidation/little aeration artificial wetland process purifying contaminated river " that 5 phases (22-26) deliver at " Chinese water supply and drainage " 24.
The methane waste product that produces in the course of the work for said Wastewater Pretreatment pond 11 and said sludge treatment device 15; Can pass through pipe connection to said steam boiler 16 respectively via the methane waste product outlet 114 in said Wastewater Pretreatment pond 11 and the methane waste product outlet 153 of said sludge treatment device 15; First methane inlet, 161 and second methane inlet 162 through said steam boiler 16; Get into the roasting kiln of said steam boiler 16; Acting as a fuel provides heat to said steam boiler 16 after burning, makes said steam boiler 16 produce the steam of 1-5.4 MPa.
In a preferred embodiment; The vapour outlet 163 of said steam boiler 16 is through pipe connection to said condensing crystal jar 14; The steam of 1-5.4 MPa is carried to said condensing crystal jar 14 in steam-in 142 via said condensing crystal jar 14, as the driving heat source of condensing crystal jar.
Rest part embodiment illustrated in fig. 4 and embodiment illustrated in fig. 3 identical is given unnecessary details at this no longer one by one.
In another specific embodiment; Said low concentration wastewater Integrated Processing Unit 1 further comprises thermal power generation mechanism; The methane waste product outlet 153 of outlet 114 of the methane waste product in said Wastewater Pretreatment pond 11 and said sludge treatment device 15 respectively through pipe connection to said thermal power generation mechanism, for said thermal power generation mechanism provides methane to act as a fuel.
A kind of low concentration wastewater Integrated Processing Unit provided by the invention; After the low concentration wastewater processing that productive life produced; Can it be purified recovery more than 90%, remaining concentrated waste water can directly be handled qualified discharge, also can generate the solid state crystallization security landfill; The excess sludge that produces in the said low concentration wastewater Integrated Processing Unit working process can be treated to solid and come security landfill, thereby can realize zero release.
In addition, the methane gas that in said low concentration wastewater Integrated Processing Unit working process, generates also can be used for taking place the driving heat source of steam as mold, also can be used for generating, has effectively practiced thrift said low concentration wastewater Integrated Processing Unit to demands for energy.
Said low concentration wastewater Integrated Processing Unit has solved the handling problem of conventional three grades of wastewater treatment denitrogenation difficult problems and the dense water of conventional membrane sepn reuse technology; Through with water source, thermal source, comprehensive utilization of energy; Reach low-cost high-efficiency and handle waste water, reduce the target of water environment pollution to greatest extent.
Describing according to the mode of a plurality of embodiment though it will be appreciated by those skilled in the art that the present invention, is not that each embodiment only comprises an independently technical scheme.Narration like this only is for the sake of clarity in the specification sheets; Those skilled in the art should do specification sheets as a wholely to understand, and regard technical scheme related among each embodiment as the mode that can be combined into different embodiment each other understand protection scope of the present invention.
The above is merely the schematic embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, revises and combines the equivalent variations of under the prerequisite that does not break away from design of the present invention and principle, being done, and all should belong to the scope that the present invention protects.
Claims (7)
1. low concentration wastewater Integrated Processing Unit; It is characterized in that; Said low concentration wastewater Integrated Processing Unit comprises Wastewater Pretreatment pond, mesolow reverse osmosis membrane processing jar, a high pressure reverse osmosis membrane processing jar and the electrochemical processing cell that working pressure is the 7-20 MPa that working pressure is the 1-4 MPa at least; Wherein, Municipal administration or trade effluent pipeline insert the inlet in said Wastewater Pretreatment pond; The wastewater outlet in said Wastewater Pretreatment pond is connected with the inlet of said mesolow reverse osmosis membrane processing jar through pipeline, and the treated water outlet of said mesolow reverse osmosis membrane processing jar connects municipal administration or industrial intermediate water pipeline, and the wastewater outlet of said mesolow reverse osmosis membrane processing jar connects the inlet of said electrochemical processing cell and the inlet of said high pressure reverse osmosis membrane processing jar respectively.
2. low concentration wastewater Integrated Processing Unit according to claim 1; It is characterized in that; Said low concentration wastewater Integrated Processing Unit further comprises the condensing crystal jar, and the inlet of said condensing crystal jar is connected with second wastewater outlet of said high pressure reverse osmosis membrane processing jar.
3. low concentration wastewater Integrated Processing Unit according to claim 2; It is characterized in that; First wastewater outlet of said high pressure reverse osmosis membrane processing jar connects the inlet of said electrochemical processing cell, and the wastewater outlet of said electrochemical processing cell connects said condensing crystal jar.
4. low concentration wastewater Integrated Processing Unit according to claim 3 is characterized in that, said low concentration wastewater Integrated Processing Unit further comprises sludge treatment mechanism, and the sludge outlet in said Wastewater Pretreatment pond is connected with said sludge treatment mechanism.
5. low concentration wastewater Integrated Processing Unit according to claim 4; It is characterized in that; Said low concentration wastewater Integrated Processing Unit further comprises steam boiler; Said Wastewater Pretreatment pond further comprises a biochemistry pool that generates methane waste product, and the methane waste product outlet of the methane waste product outlet in said Wastewater Pretreatment pond and said sludge treatment mechanism is respectively through the pipe connection roasting kiln of said steam boiler extremely.
6. low concentration wastewater Integrated Processing Unit according to claim 5 is characterized in that, the vapour outlet of said steam boiler is through pipe connection to said condensing crystal jar.
7. low concentration wastewater Integrated Processing Unit according to claim 6; It is characterized in that; Said low concentration wastewater Integrated Processing Unit further comprises thermal power generation mechanism, and the methane waste product outlet of outlet of the methane waste product in said Wastewater Pretreatment pond and said sludge treatment mechanism is respectively through the extremely said thermal power generation of pipe connection mechanism.
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| CN2011101504134A CN102285734B (en) | 2011-06-07 | 2011-06-07 | Comprehensive treatment device of low-concentration wastewater |
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| CN2011101504134A CN102285734B (en) | 2011-06-07 | 2011-06-07 | Comprehensive treatment device of low-concentration wastewater |
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| CN100488899C (en) * | 2007-02-01 | 2009-05-20 | 天津大学 | Diaphragm separation electrolyzing integrated treatment method for waste water containing heavy metal copper |
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Effective date of registration: 20130308 Address after: 100085, Room 802, building D, 2 information road, Haidian District, Beijing Patentee after: Beijing Zhongsheng Huida Technology Co.,Ltd. Address before: 100085, Room 802, building D, 2 information road, Haidian District, Beijing Patentee before: Beijing Zhongsheng Huida Technology Co.,Ltd. Patentee before: Zou Huihua Patentee before: Jin Chenguang |
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