CN102897981B - Rural domestic waste water treatment recycling process and device - Google Patents
Rural domestic waste water treatment recycling process and device Download PDFInfo
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- CN102897981B CN102897981B CN201210426303.0A CN201210426303A CN102897981B CN 102897981 B CN102897981 B CN 102897981B CN 201210426303 A CN201210426303 A CN 201210426303A CN 102897981 B CN102897981 B CN 102897981B
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Abstract
The invention discloses a rural domestic waste water treatment recycling process and a recycling device. The waste water produced in the rural life can be recycled for a washing procedure after being decolored and purified by a bio-membrane reactor, after the bio-membrane reactor is saturated, the bio-membrane reactor is high-efficiently and rapidly renewed by utilizing a renewable device, the renewed concentrated solution and the backwashing waste water are discharged after being oxidized and degraded by a three-dimensional photoelectrical chemical reactor to reach the standard, and thus a purpose for purifying and recycling the rural domestic waste water can be realized. Through the process and the device, the concentration of pollutants in the domestic waste water can be continuously reduced, and a purpose for recycling the waste water can be realized; and the recycling rate of the waste water is high (more than 85 percent), the environmental pollution of the countryside caused by the pollutants of the rural domestic water can be greatly reduced, and the consumption and operation cost of the rural domestic water can be reduced.
Description
Technical field
The present invention relates to one and process reuse technology and device thereof at rural domestic waste, belong to field of environment engineering.
Background technology
China's domestic sewage in rural areas by using is mainly derived from kitchen cooking, shower, washing, lavatory flushing and urban residents and cultivates the excrement and urine water etc. that livestock and poultry produce; mainly contain following characteristics: domestic sewage in rural areas by using widely distributed and disperse, most of rural area does not have sewage discharge pipe network; Domestic sewage in rural areas by using concentration is low, variation water quality is large, but the character of domestic sewage in rural areas by using is more or less the same, and is substantially devoid of heavy metal and hazardous and noxious substances in water, and containing a certain amount of nitrogen, phosphorus, biodegradability is strong.
Although existing urban sewage treatment technology is feasible, invest high, working cost is large, management expectancy is high, in rural area, be difficult to promote the use of.Therefore, high-level efficiency, less energy-consumption, sewage disposal technology is significant for solving rural environment cheaply.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of rural domestic waste and processes reuse technology, and sanitary wastewater is directly used in to washing procedure after biofilm reactor biochemical treatment; After biofilm reactor processing is saturated, with the processing of regenerating unit regenerated liquid; Then with fresh tap water recoil biofilm reactor; After regeneration waste liquid and fresh tap water back flushing, waste water enters into three-dimensional light electrochemical reactor and processes the pollutent advanced treatment of waste water, rear discharge up to standard
Rural domestic waste of the present invention is processed reclamation set, comprising: washing section (1), regenerating unit (2), biomembrane reaction apparatus (3), three-dimensional light electrochemical reactor (4), waste water comprehensive treating process district (5), medicine storing pot (6), adsorption medium (7), supporting plate (8), supporting layer (9), UV lamp (10), power supply (11), mixing pump (12), water pump (13), tensimeter (14), valve (15), dividing plate (16); Waste water is processed by biofilm reactor (3), regenerating unit (2) and (4) three parts of three-dimensional light electrochemical reactor after washing section (1), and wherein biofilm reactor master has filled supporting plate (8), supporting layer (9), adsorption medium (7), supporting plate (8) from top to bottom successively; The solution that recoils in biofilm reactor enters into regenerating unit (2) by valve (15); Regenerating unit (2) is divided into two portions with dividing plate (16); A part fills regenerated liquid, and another part fills the counter-flushing liquid that rinses biofilm reactor; Water pump (13) is installed at biomembrane reaction apparatus water inlet pipe place, accelerates the conveying of water, controls the flow velocity of water, and water inlet pipe and rising pipe are installed the water balance that under meter keeps Inlet and outlet water; Biomembrane reaction apparatus is also installed hydraulicefficiency pressure gauge (14), in case pressure overload; The waste water of last regenerating unit and biofilm reactor are processed waste water and are convergeed to (5) waste water comprehensive treating process, through three-dimensional light electrochemical reactor (4), carry out advanced treatment, three-dimensional light chemical reactor by UV lamp (10), power supply (11),, mixing pump (12) and medicine storing pot form (6).Washes water outlet after its adsorption filtration enters washing step reuse immediately.In the middle of regenerating unit, with dividing plate, be divided into two portions, a part fills regenerated liquid, and another part is the fresh tap water that rinses biofilm reactor certain pH value.In treater biofilm reactor saturated after, with regenerating unit regenerated liquid wash-out, take fresh tap water back flushing to biofilm reactor, be then neutral.Regeneration concentrated solution and the further oxidative degradation in backwashing wastewater penetration depth treatment zone, according to selected advanced treatment technology, three-dimensional light electrochemical reactor is joined by TiO
2the high pure graphite electrode that/Ti membrane electrode is anode, have a higher liberation of hydrogen overvoltage is that negative electrode, mercurous chloride electrode are reference electrode, UV lamp source and the mechanical stirrer that plays homogeneous effect composition, by volume pump, required medicament is added in water through mixing pump, after opening device, in advanced treatment system, react certain hour rear discharge up to standard.Wherein supporting plate, comprises polypropylene or the polyester filter cloth in 50-200 order stainless steel web plate and 0.5-300 μ m aperture; Supporting layer comprises quartz sand, pebbles, columnar activated carbon; Filler is tubular fibre ball.Wherein supporting plate, comprises polypropylene or the polyester filter cloth in 50-200 order stainless steel web plate and 0.5-300 μ m aperture; Supporting layer comprises quartz sand, pebbles, columnar activated carbon; Adsorption medium has microbial film and media assemblage, and filler is tubular fibre ball.The oxidation medicament that three-dimensional light electrochemical reactor is used comprises: 0.01-10g/LH
2o
2solution and containing ferrous iron or ferric ion solution, hydrogen peroxide and iron ion proportioning 1:1-500:1; 0-1kg nano titanium oxide; Flow is 1-1000L/h ozone.Added amount of chemical (g) and influent COD (g/m
3) ratio is 0.1-10:1.
The advantage that the present invention has:
First biomembrane reaction apparatus is incorporated in the middle of relatively easy-to-handle sanitary wastewater purifying treatment, treating processes drops into without other medicaments, for washing water quality without potential detrimentally affect, and then can not produce negative effect to recycling.
Secondly, film reaction system is separation with regeneration system, reaches on the one hand and makes adsorption medium recycling, reduces the object of running cost, on the other hand, also guarantees that non-secondary pollution material enters in recirculated water.
What is more important, in biological wastewater, pollution substance carries out high-level oxidation technology oxidative degradation after biofilm reactor concentration again, on the one hand can accelerated reaction speed, reduce the ultraviolet lighting time, can reduce on the other hand reactor volume, thereby running cost is further reduced.
In rural area of the present invention washes processing reuse technology and device, biofilm reactor treating processes is interior without adding chemical agent, non-secondary pollution, and then can not use and cause additional effect and wastewater recycle rate higher (> 85%) water cycle, can greatly alleviate the environmental stress that rural domestic waste causes, this device operational administrative is simple, facility investment and working cost are low, easy to utilize, and facility investment is less than 1 year payback period.
Accompanying drawing explanation
Fig. 1 is that rural domestic waste of the present invention is processed recovering process flow figure;
Fig. 2 is that rural domestic waste is processed reclamation set figure, wherein: 1, washing section; 2, regenerating unit; 3, biomembrane reaction apparatus; 4, three-dimensional light electrochemical reactor; 5, waste water comprehensive treating process district; 6, medicine storing pot; 7, adsorption medium; 8, supporting plate; 9, supporting layer; 10, UV lamp; 11, power supply; 12, mixing pump; 13, water pump; 14, tensimeter; 15, valve; 16, dividing plate.
Embodiment
Below in conjunction with specific examples, further set forth the present invention.Should be understood that these examples are only not used in and limit the scope of the invention for the present invention is described.In addition should be understood that those skilled in the art can make various changes or modifications the present invention after having read the content of the present invention's instruction, these equivalent form of values fall within the application's appended claims limited range equally.
Shown in rural domestic waste processing reuse technology of the present invention and device see figures.1.and.2 respectively, in the present invention, biomembrane reaction apparatus, regenerating unit and three-dimensional light electrochemical reaction apparatus and pipeline are formed by polyvinyl chloride pipe board material splice.In the middle of regenerating unit, with dividing plate 16, be divided into regenerated liquid storage area and two parts of counter-flushing liquid storage area.Water inlet pipe and rising pipe are installed the water balance that under meter keeps Inlet and outlet water, and water pump 13 is installed at biomembrane reaction apparatus water inlet pipe place, accelerate the conveying of water, keep certain flow velocity.Biomembrane reaction apparatus is also installed hydraulicefficiency pressure gauge 14, in case pressure overload.
Biomembrane reaction apparatus, fills supporting plate 8 from top to bottom successively, supporting layer 9, adsorption medium 7, supporting plate 8.Wherein supporting plate 8 is 60 order stainless steel web plates, supporting layer 9 is 20 order quartz sands, and adsorption medium 7 is the spherical macropore phenolic aldehyde of 0.3-1.2mm condensation polymer type weakly basic anion resin 500g, adsorption medium layer height 160mm, section radius 4cm, its inner hydraulic pressure 0.3Mpa that keeps, flow velocity 15m/s, using colourity as 1(extension rate method) as adsorption penetration point, after penetrating, stop into water, carry out adsorption medium regeneration, now will after washing water discharge, be replaced by fresh tap water, to avoid salinity accumulation.
In the middle of regenerating unit, regenerated liquid storage area is selected 0.01M NaOH solution, volume is 5L, by water pump, squeeze into adsorption filtration device, divide dipping wash-outs 5 times, each 5min, then in counter-flushing liquid storage area, by sulfuric acid and fresh tap water, prepare pH 5 solution 3L, divide in the back flushing of 3 dippings and adsorption medium, be also 5min at every turn.Regenerative elution back flushing is complete is at every turn pressed into three-dimensional light electrochemical reaction apparatus by water pump.
Three-dimensional light electrochemical reaction apparatus cumulative volume is 10L, and internal interval is installed 2 of 50w ultraviolet lamps side by side, and two, electrode, is furnished with Fe in container for storing liquid
2+and H
2o
2mol ratio is the Fenton reagent of 1:50, with influent COD
crthe theoretical H that consumes
2o
2amount (1gCOD
crconsume 2.2g H
2o
2) enter advanced oxidation reaction unit after quantitative Fenton reagent being mixed with water inlet by volume pump and mixing pump, open ultraviolet lamp and agitator, UV photocatalytic oxidation degradation reacts draining after 30min.
Execute example 2
Take life in the countryside bath water as handling object, after processing, for dyeing, originally every cylinder fabric dyes rear washing 8 roads, per pass 10L, and per pass washing time is 10min, needs fresh tap water water yield 80L altogether, the 1st road water outlet water-quality guideline is in Table 1.Adopt treatment process of the present invention and device, with the 1st road washing water 10L and adsorption filtration device intake in advance 1L altogether 11L carry out online treatment and cyclically utilizing, be that subsequent wash 7 roads all carry out with water outlet after adsorption filtration, after the adsorption filtration that (is equivalent to the 8th road washing water) after washing, effluent quality is in Table 1.After continuous washing 20 cylinders time fabric, adsorption filtration device reaches breakthrough point, and then, with regenerating unit wash-out regeneration adsorption medium, regeneration concentrated solution water and backwashing wastewater enter advanced oxidation device and carry out oxidative degradation, and water-quality guideline is in Table 1 respectively.Fabric color aberration and washing fastness quality index and blank sample after 20 cylinder washings (being that fresh tap water adds detergent washing) contrast is in Table 2.From upper table contrast, after washes is processed reuse technology and device processing through the present invention, effluent index all reaches various dyeing water water quality standard.And the concentrated waste water of regeneration and backwashing wastewater can reach the strictest emission request completely after advanced oxidation device is processed.After reuse water fabric washing, compare with standard specimen, all can meet specification of quality completely, and do not adding in detergent situation, staining fastness is equal to or higher than half grade of standard specimen.From the 21st cylinder and the 22nd cylinder data, after adsorption medium regeneration, return to previous level completely.According to original bath water, 20 cylinder fabrics need 1600L, adopt after technique of the present invention and device, comprise operation, regeneration back flushing, evaporation, webbing liquid measure only needs 30L altogether, and water-saving rate is up to 98%, and do not adding in washing composition situation, dyeing quality and standard specimen maintain an equal level or are slightly improved.
Table 1 the present invention processes washes operation effluent quality and various dyeing water canonical statistics table
Note: "-" is without explanation or no standard.Colourity is measured with extension rate method; Total hardness is with CaCO
3meter.
Table 2 produces reuse water washing fabric color aberration and washing fastness quality index and blank sample contrast with the present invention
| Washing fastness (level) | Staining fastness (level) | Aberration (level) | |
| Standard specimen | 4 | 3 | - |
| The 1st cylinder fabric | 4 | 3-4 | 4 |
| The 2nd cylinder fabric | 4 | 3-4 | 4-5 |
| The 3rd cylinder fabric | 4 | 3-4 | 4 |
| The 4th cylinder fabric | 4-5 | 3 | 4-5 |
| The 5th cylinder fabric | 4 | 3 | 4 |
| The 6th cylinder fabric | 4 | 3-4 | 4 |
| The 7th cylinder fabric | 4 | 3-4 | 4 |
| The 8th cylinder fabric | 4 | 3-4 | 4 |
| The 9th cylinder fabric | 4-5 | 3 | 4-5 |
| The 10th cylinder fabric | 4 | 3-4 | 4 |
| The 11st cylinder fabric | 4 | 3-4 | 4 |
| The 12nd cylinder fabric | 4 | 3-4 | 4 |
| The 13rd cylinder fabric | 4 | 3 | 4-5 |
| The 14th cylinder fabric | 4 | 3-4 | 4 |
| The 15th cylinder fabric | 4 | 3 | 4-5 |
| The 16th cylinder fabric | 4 | 3-4 | 4-5 |
| The 17th cylinder fabric | 4 | 3-4 | 4-5 |
| The 18th cylinder fabric | 4 | 3 | 4 |
| The 19th cylinder fabric | 4 | 3 | 4-5 |
| The 20th cylinder fabric | 4 | 3 | 4-5 |
| The 21st cylinder fabric | 4 | 3-4 | 4 |
| The 22nd cylinder fabric | 4 | 3-4 | 4 |
Claims (6)
1. rural domestic waste is processed a reclamation set, it is characterized in that comprising: washing section (1), regenerating unit (2), biomembrane reaction apparatus (3), three-dimensional light electrochemical reactor (4), waste water comprehensive treating process district (5), medicine storing pot (6), adsorption medium (7), supporting plate (8), supporting layer (9), UV lamp (10), power supply (11), mixing pump (12), water pump (13), tensimeter (14), valve (15), dividing plate (16); Biofilm reactor has been filled supporting plate (8), supporting layer (9), adsorption medium (7), supporting plate (8) from top to bottom successively; The solution that recoils in biofilm reactor enters into regenerating unit (2) by valve (15); Regenerating unit (2) is divided into two portions with dividing plate (16); A part fills regenerated liquid, and another part fills the counter-flushing liquid that rinses biofilm reactor; Water pump (13) is installed at biomembrane reaction apparatus water inlet pipe place, accelerates the conveying of water, controls the flow velocity of water, and water inlet pipe and rising pipe are installed the water balance that under meter keeps Inlet and outlet water; Biomembrane reaction apparatus is setting pressure table (14) also, in case pressure overload; The waste water of regenerating unit and biofilm reactor are processed waste water and are convergeed to waste water comprehensive treating process district (5), through three-dimensional light electrochemical reactor (4), carry out advanced treatment, three-dimensional light chemical reactor is comprised of UV lamp (10), power supply (11), mixing pump (12) and medicine storing pot (6).
2. reclamation set according to claim 1, is characterized in that described supporting plate comprises polypropylene or the polyester filter cloth in 50-200 order stainless steel web plate and 0.5-300 μ m aperture; Supporting layer comprises quartz sand, pebbles and columnar activated carbon.
3. reclamation set according to claim 1, is characterized in that described regenerating unit regenerated liquid comprises 0.1-1g/L NaOH or H
2sO
4solution; 0.01-10g/L H
2o
2solution and containing ferrous iron or ferric ion solution, hydrogen peroxide and iron ion proportioning 1:1-500:1, counter-flushing liquid is pH2-7 fresh tap water.
4. reclamation set according to claim 1, is characterized in that by volume pump, oxidation medicament being added in water through mixing pump in described three-dimensional light electrochemical reactor; Oxidation medicament comprises: 0.01-10g/L H
2o
2solution and containing ferrous iron or ferric ion solution, hydrogen peroxide and iron ion proportioning 1:1-500:1; 0-1kg nano titanium oxide; Flow is 1-1000L/h ozone; Added amount of chemical g and influent COD g/m
3ratio is 0.1-10:1.
5. according to the reclamation set described in claim 1 or 4, the high pure graphite electrode that it is characterized in that three-dimensional light electrochemical reactor to adopt TiO2/Ti membrane electrode be anode, has higher liberation of hydrogen overvoltage is that negative electrode, mercurous chloride electrode are reference electrode.
6. reclamation set according to claim 1, it is characterized in that described by microbial film and media assemblage, filler is tubular fibre ball, main component is the spherical macropore phenolic aldehyde of 0.3-1.2mm condensation polymer type weakly basic anion resin 500g, adsorption medium layer height 160mm, section radius 4cm, its inner hydraulic pressure 0.3Mpa, flow velocity 15m/s of keeping.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426303.0A CN102897981B (en) | 2012-10-31 | 2012-10-31 | Rural domestic waste water treatment recycling process and device |
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| CN108128975A (en) * | 2017-12-28 | 2018-06-08 | 重庆市桑麻环保科技有限公司 | A kind of method for treating rural wastewater |
| CN108379877B (en) * | 2018-01-30 | 2020-12-25 | 日照金禾博源生化有限公司 | Citric acid solution decolorizing column and application thereof |
| CN109095524A (en) * | 2018-09-26 | 2018-12-28 | 汪巧巧 | Back purge system for sanitary wastewater treatment recycling system |
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|---|---|---|---|---|
| CN200971335Y (en) * | 2006-06-27 | 2007-11-07 | 上海大学 | Combined sewage treatment device |
| CN101121566A (en) * | 2007-07-13 | 2008-02-13 | 东华大学 | Anaerobic composite type membrane bioreactor combined system and method for treating mixed waste water |
| CN101355837A (en) * | 2007-07-25 | 2009-01-28 | 群康科技(深圳)有限公司 | Half-penetration half-reflexion type electric moistening type display apparatus |
| CN101913702A (en) * | 2010-08-16 | 2010-12-15 | 南京大学 | Treatment system and treatment method for rural domestic sewage |
| CN202164205U (en) * | 2011-06-30 | 2012-03-14 | 江苏龙腾工程设计有限公司 | Advanced treatment device for coating wastewater |
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- 2012-10-31 CN CN201210426303.0A patent/CN102897981B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200971335Y (en) * | 2006-06-27 | 2007-11-07 | 上海大学 | Combined sewage treatment device |
| CN101121566A (en) * | 2007-07-13 | 2008-02-13 | 东华大学 | Anaerobic composite type membrane bioreactor combined system and method for treating mixed waste water |
| CN101355837A (en) * | 2007-07-25 | 2009-01-28 | 群康科技(深圳)有限公司 | Half-penetration half-reflexion type electric moistening type display apparatus |
| CN101913702A (en) * | 2010-08-16 | 2010-12-15 | 南京大学 | Treatment system and treatment method for rural domestic sewage |
| CN202164205U (en) * | 2011-06-30 | 2012-03-14 | 江苏龙腾工程设计有限公司 | Advanced treatment device for coating wastewater |
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