CN102863126B - Method for industrialized town polluted river water purification and water environment ecological restoration - Google Patents
Method for industrialized town polluted river water purification and water environment ecological restoration Download PDFInfo
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Abstract
The invention belongs to the field of ecology and environment protection and relates to a method for industrialized town polluted river water purification and water environment ecological restoration. The method includes that an industrialized town polluted river reach is divided into three continuous and different sections of a water purification film filtering section, a biological grid filtering section and a wetland arranging section to serve as sewage water treatment units, wherein first two river reaches serve as sewage water collecting river reaches, the sewage water firstly enters into the water purification film filtering section and automatically flows into the biological grid filtering section, a biological substrate modifying agent is thrown into the whole polluted river reach to perform substrate modification for the river reach, the sewage water flows into the wetland arranging section, and then field snails, clams and crassostrea gigas are thrown into the river reach to implement bottom-dwelling animal control cultivation for the polluted river water of the whole river reach. The method has the advantages that the river reach which is planned to be treated serves as a treated carrier, combination technologies such as artificial waterweeds, efficient water purification film, biological grid filtering, river channel substrate modification, floating island type wetlands and bottom-dwelling animal control cultivation are reasonably collocated, the water quality is continuously improved, and simultaneously the positive cycling of the water ecological system is achieved.
Description
Technical field
The invention belongs to ecology and field of environment protection, be specifically related to a kind of industrialization villages and small towns polluted river water and purify and water surrounding ecological restoring method.
Background technology
China's cities and towns quantity is many, distribution is wide, particularly the In The Course of Urbanization In Developed District such as the Yangtze River Delta, Pearl River Delta speed is accelerated, population pours in the villages and small towns of big city periphery, produce thus a large amount of sanitary sewages, although part villages and small towns are built, there is Sewage Treatment Facilities, but treatment facility is incomplete, even if water outlet can reach even one-level A emission standard of < < integrated wastewater discharge standard > > (GB8978-2002) one-level B, but the COD of discharge
cr, total phosphorus, ammonia nitrogen be still respectively up to 50mg ~ 60mg/L, 0.5mg/L ~ 1mg/L, 5mg/L ~ 8mg/L.And V class water in < < water environment quality standard > > (GB3838-83), it is to COD
cr, the pollutent such as total phosphorus, ammonia nitrogen safe level be respectively 30mg/L ~ 40mg/L, 0.3mg/L ~ 0.4mg/L, 1.5mg/L ~ 2.0mg/L, reach as seen the even sanitary sewage of one-level A emission standard of one-level B, its COD
cr, total phosphorus, the indexs such as ammonia nitrogen are still far above surface water V class standard, particularly in low water season, river discharge hour, the sanitary sewage of villages and small towns discharge occupies very large proportion in the collected total sewage in section, add that farmland used chemical fertilizer and agricultural chemicals in a large number, rainy day agricultural run-off a large amount of nitrogen phosphorus of also carrying under one's arms enters river course, in addition these villages and small towns do not have regular refuse collection and storage and handling facility, villager's custom is abandoned scrap heap on side, river course or is thrown away and is placed in river course, cause the accumulation of mercury thing comparatively serious, nitrogen in bed mud, phosphorus can seasonally discharge, enter water body.Water phosphorus content too much certainly will cause hypertrophy and the breeding of the algae such as hydrobiont and blue-green algae, chlorella, thereby cause dissolved oxygen content in water body to decline, and then the mortality of initiation hydrocoles and waterplant, and corrupt organism can aggravate the water pollution in river course, add river water body mobility poor, river course, villages and small towns still can the black smelly phenomenon of seasonal generation, resident's life and physical and mental health near having a strong impact on.
For the improvement of these industrialization villages and small towns polluted river waters, if build sewage collecting pipe network, sewage is focused on, investment is large, working cost is high.The way that tradition adopts is sclerosis riverbed, build stone, concrete revetment etc., although these methods can be strengthened the stability of creek and be beneficial to river course is carried out to desilting, but also brought such as making riverbank lose the ecological problems such as water ecosystem function, pollutent in more can not degrading waste water, thereby be also not suitable for the regulation in river course, villages and small towns.
Summary of the invention
A kind of section of directly plan being administered that the object of the invention is to propose in order effectively to solve the pollution problem of south China industrialization villages and small towns river is as the carrier of processing, combination technique is supported in reasonably combined artificial aquatic weed, efficient water purification film and biological grid filtration, river course substrate modification, floating-island type wetland, zoobenthos control, continue to improve water quality, realize the benign cycle of aquatic ecosystem simultaneously.
The technical solution used in the present invention:
The pollution section, industrialization villages and small towns that is B using width is separated into 3 continuous different sections such as water purification membrane filtration section, biological grid fillter section, wetland layout section as sewage treatment unit, and wherein front 2 sections are sewage collecting section (receiving dirty section).First sewage enter water purification membrane filtration section, and (length is L
1), (length is L certainly to flow to biological grid fillter section
2), then to whole pollution section according to 0.015kg/m
2density is thrown in biological substrate modifier substrate improvement is carried out in section, and sewage flows into wetland again and arranges that (length is L to section
3), afterwards again according to 0.02kg/m
2density throw in spiral shell, a species of small clam living in fresh water, according to 0.5/m
2density throw in huge oyster and the polluted river water of whole section is implemented to zoobenthos control support.Above-mentioned 3 improvement segment length design rules are: L
1main sewage outfalls setting under Main Basis in section, accounts for and administers 70% of total sewage quantity of collecting section and determine by the collected sewage in this section, and other length of two sections is respectively: L
2=0.3L
1, L
3=1.5L
1.
The present invention's substrate modifier used is: lime, clay and the soil ulmin that contains microbial preparation.
Beneficial effect of the present invention:
1. the present invention trains for a certain area by aquatic animals and plants, can set up stable artificial ecosystem, realizes the succession of artificial ecosystem to natural ecosystems.
2. the present invention directly carries out bioaugmentation and biodegradation to industrialization villages and small towns polluted river water in river course, can be by total COD
crfrom 70mg/L, be down to 43.1mg/L, total phosphorus is down to 0.149mg/L from 1.5mg/L, and ammonia nitrogen is down to 0.483mg/L from 20mg/L, and water transparency rises to 40cm by original not enough 20cm, and quality of river water obviously improves.
3. the present invention has planted various waterplant in a large number in improvement section, when purifying water, also coordinates mutually with surrounding enviroment, and surrounding landscape is improved.
4. the present invention need not any power facility, with low cost.
Accompanying drawing explanation
Fig. 1 is the plot plan of the polluted river water purification of a kind of industrialization villages and small towns and water surrounding ecological restoring method.
In Fig. 1: I-water purification membrane filtration section; II-biological grid fillter section; III-wetland is arranged section
L
1-water purification membrane filtration segment length; L
2-biological grid fillter section length; L
3-wetland is arranged segment length; B-channel width.
Embodiment
As shown in Figure 1, the industrialization villages and small towns pollution section of the present invention using width as B is as the carrier of sewage collecting and biological treatment, using polluting section, be separated into 3 continuous different sections as sewage disposal and restoration of the ecosystem unit, 3 different sections are respectively water purification membrane filtration section I, and (length is L
1), (length is L to biological grid fillter section II
2) and wetland arrange section an III (length is L
3), wherein I+II section is sewage collecting section (receiving dirty section).First sewage enter water purification membrane filtration section I, certainly flow to biological grid fillter section II, then to whole pollution section according to 0.015kg/m
2density is thrown in biological substrate modifier substrate improvement is carried out in section, and sewage flows into wetland again and arranges section III, afterwards again according to 0.02kg/m
2density throw in spiral shell, a species of small clam living in fresh water, according to 0.5/m
2density throw in huge oyster and the polluted river water of whole section is implemented to zoobenthos control support.Above-mentioned 3 improvement segment length design rules are: L
1main sewage outfalls setting under Main Basis in section, accounts for and administers 70% of total sewage quantity of collecting section and determine by the collected sewage in this section, and other length of two sections is respectively: L
2=0.3L
1, L
3=1.5L
1.
The major function of above-mentioned each processing unit is described below:
(1) in water purification membrane filtration section I, take the sewage discharge mouth of pipe of concentrating distribution as layout points, according to 15% of this section of water surface area, arrange that artificial aquatic weed is to sewage simple filtration, by 25% of this section of water surface area, arrange that efficient water purification film carries out depth type filtration to sewage again, artificial aquatic weed, water purification film all can be held back suspended substance and the particle in sewage, remove inorganics and partial organic substances.
(2) in biological grid fillter section II, take the sewage discharge mouth of pipe sporadicly distributing, as layout points, according to 22% of this section of water surface area, arrange that biological grid further filters water, the effect of biological grid is mainly to utilize the synergy of the ecological key elements such as waterplant, microorganism, hydrocoles to complete the object of restoration of the ecosystem.
(3) object that the present invention carries out substrate modification to river course is to remove rapidly river bed toxic substance H
2s, and under hypoxia condition the product organic acid of incomplete decomposing, pH at the bottom of poised stream, reduces organic content, changes stench substrate.The present invention's substrate modifier used is: lime, clay and the soil ulmin that contains microbial preparation.
(4) at wetland, arrange section III, according to 25% of this section of water surface area, arrange floating-island type wetland, along water (flow) direction, every 8m, arrange a place, by wet land filler reasonable Arrangement on buoyancy aid, form filler buoyancy aid, the a large amount of waterplant of reasonably combined plantation up, emergent is selected power flower, calamus, Canna generalis Bailey, iris etc. again; Floating plant use dead season circle coin grass, poly-grass, harmony dish etc.; Submerged plant is selected water caltrop, watercrowfoot, p.malaianus etc., mainly utilizes a large amount of microorganisms that adhere on waterplant and biofilm carrier can absorb rapidly the ability of the nutritive substances such as Water phosphorus, keeps water body purification effect.
(5) the present invention evenly throws in spiral shell, a species of small clam living in fresh water, huge oyster to water body and carries out zoobenthos control and support, the better tolerance of these zoobenthos to polluted river water, and purifying river water effect is remarkable simultaneously.
Below provide 5 embodiment to further illustrate this technology.
River course width average B=15m, average depth 2.0m, water surface area 4200m
2, along water (flow) direction, section is divided into water purification membrane filtration section I, and (length is L
1=100m), (length is L to biological grid fillter section II
2=30m) and wetland arrange section an III (length is L
3=150m); In water purification membrane filtration section I, take the sewage discharge mouth of pipe of concentrating distribution as layout points, first arrange artificial aquatic weed 225m
2, then arrange efficient water purification film 375m
2; In biological grid fillter section II, take the sewage discharge mouth of pipe that sporadicly distributes as layout points, arrange biological grid 99m
2; Then the biological substrate modifier 63kg being comprised of lime, clay and the soil ulmin that contains microbial preparation is thrown in in whole pollution section substrate improvement is carried out in section; At wetland, arrange section III, along water (flow) direction, every 8m, arrange place's floating-island type wetland, Wetland Area is 562.5m
2; Throw in afterwards spiral shell, a species of small clam living in fresh water 84kg, throw in the control of 2100 enforcement of the polluted river waters to whole section zoobenthos of huge oyster and support; The sewage above-mentioned each processing unit of flowing through successively, finally can carry out bioaugmentation and biodegradation by the polluted river water of this section, can amount to 650m
3the COD of the sewage of/d
crfrom 70mg/L, be down to 43.1mg/L, total phosphorus is down to 0.149mg/L from 1.5mg/L, and ammonia nitrogen is down to 0.483mg/L from 20mg/L, and water transparency rises to 40cm by original not enough 20cm, and quality of river water obviously improves.
embodiment 2
River course width average B=18m, average depth 2.5m, water surface area 7560m
2, along water (flow) direction, section is divided into water purification membrane filtration section I, and (length is L
1=150m), (length is L to biological grid fillter section II
2=45m) and wetland arrange section an III (length is L
3=225m); In water purification membrane filtration section I, take the sewage discharge mouth of pipe of concentrating distribution as layout points, first arrange artificial aquatic weed 405m
2, then arrange efficient water purification film 675m
2; In biological grid fillter section II, take the sewage discharge mouth of pipe that sporadicly distributes as layout points, arrange biological grid 178.2m
2; Then the biological substrate modifier 113.4kg being comprised of lime, clay and the soil ulmin that contains microbial preparation is thrown in in whole pollution section substrate improvement is carried out in section; At wetland, arrange section III, along water (flow) direction, every 8m, arrange place's floating-island type wetland, Wetland Area is 1012.5m
2; Throw in afterwards spiral shell, a species of small clam living in fresh water 151.2kg, throw in the control of 3780 enforcement of the polluted river waters to whole section zoobenthos of huge oyster and support; The sewage above-mentioned each processing unit of flowing through successively, finally can carry out bioaugmentation and biodegradation by the polluted river water of this section, can amount to 950m
3the COD of the sewage of/d
crfrom 68mg/L, be down to 41.868mg/L, total phosphorus is down to 0.119mg/L from 1.2mg/L, and ammonia nitrogen is down to 0.386mg/L from 16mg/L, and water transparency rises to 50cm by original not enough 25cm, and quality of river water obviously improves.
embodiment 3
River course width average B=24m, average depth 2.5m, water surface area 13440m
2, along water (flow) direction, section is divided into water purification membrane filtration section I, and (length is L
1=200m), (length is L to biological grid fillter section II
2=60m) and wetland arrange section an III (length is L
3=300m); In water purification membrane filtration section I, take the sewage discharge mouth of pipe of concentrating distribution as layout points, first arrange artificial aquatic weed 720m
2, then arrange efficient water purification film 1200m
2; In biological grid fillter section II, take the sewage discharge mouth of pipe that sporadicly distributes as layout points, arrange biological grid 316.8m
2; Then the biological substrate modifier 201.6kg being comprised of lime, clay and the soil ulmin that contains microbial preparation is thrown in in whole pollution section substrate improvement is carried out in section; At wetland, arrange section III, along water (flow) direction, every 8m, arrange place's floating-island type wetland, Wetland Area is 1800m
2; Throw in afterwards spiral shell, a species of small clam living in fresh water 268.8kg, throw in the control of 6720 enforcement of the polluted river waters to whole section zoobenthos of huge oyster and support; The sewage above-mentioned each processing unit of flowing through successively, finally can carry out bioaugmentation and biodegradation by the polluted river water of this section, can amount to 1400m
3the COD of the sewage of/d
crfrom 55mg/L, be down to 33.86mg/L, total phosphorus is down to 0.116mg/L from 1.17mg/L, and ammonia nitrogen is down to 0.362mg/L from 15mg/L, and water transparency rises to 60cm by original not enough 30cm, and quality of river water obviously improves.
embodiment 4
River course width average B=30m, average depth 2.0m, water surface area 15120m
2, along water (flow) direction, section is divided into water purification membrane filtration section I, and (length is L
1=180m), (length is L to biological grid fillter section II
2=54m) and wetland arrange section an III (length is L
3=270m); In water purification membrane filtration section I, take the sewage discharge mouth of pipe of concentrating distribution as layout points, first arrange artificial aquatic weed 810m
2, then arrange efficient water purification film 1350m
2; In biological grid fillter section II, take the sewage discharge mouth of pipe that sporadicly distributes as layout points, arrange biological grid 356.4m
2; Then the biological substrate modifier 226.8kg being comprised of lime, clay and the soil ulmin that contains microbial preparation is thrown in in whole pollution section substrate improvement is carried out in section; At wetland, arrange section III, along water (flow) direction, every 8m, arrange place's floating-island type wetland, Wetland Area is 2025m
2; Throw in afterwards spiral shell, a species of small clam living in fresh water 302.4kg, throw in the control of 7560 enforcement of the polluted river waters to whole section zoobenthos of huge oyster and support; The sewage above-mentioned each processing unit of flowing through successively, finally can carry out bioaugmentation and biodegradation by the polluted river water of this section, can amount to 1200m
3the COD of the sewage of/d
crfrom 53mg/L, be down to 32.63mg/L, total phosphorus is down to 0.137mg/L from 1.38mg/L, and ammonia nitrogen is down to 0.266mg/L from 11mg/L, and water transparency rises to 65cm by original not enough 35cm, and quality of river water obviously improves.
embodiment 5
River course width average B=35m, average depth 2.5m, water surface area 11760m
2, along water (flow) direction, section is divided into water purification membrane filtration section I, and (length is L
1=120m), (length is L to biological grid fillter section II
2=36m) and wetland arrange section an III (length is L
3=180m); In water purification membrane filtration section I, take the sewage discharge mouth of pipe of concentrating distribution as layout points, first arrange artificial aquatic weed 630m
2, then arrange efficient water purification film 1050m
2; In biological grid fillter section II, take the sewage discharge mouth of pipe that sporadicly distributes as layout points, arrange biological grid 277.2m
2; Then the biological substrate modifier 176.4kg being comprised of lime, clay and the soil ulmin that contains microbial preparation is thrown in in whole pollution section substrate improvement is carried out in section; At wetland, arrange section III, along water (flow) direction, every 8m, arrange place's floating-island type wetland, Wetland Area is 1575m
2; Throw in afterwards spiral shell, a species of small clam living in fresh water 235.2kg, throw in the control of 5880 enforcement of the polluted river waters to whole section zoobenthos of huge oyster and support; The sewage above-mentioned each processing unit of flowing through successively, finally can carry out bioaugmentation and biodegradation by the polluted river water of this section, can amount to 900m
3the COD of the sewage of/d
crfrom 50mg/L, be down to 30.785mg/L, total phosphorus is down to 0.121mg/L from 1.22mg/L, and ammonia nitrogen is down to 0.193mg/L from 8mg/L, and water transparency rises to 50cm by original not enough 25cm, and quality of river water obviously improves.
Claims (5)
1. an industrialization villages and small towns polluted river water purifies and water surrounding ecological restoring method, it is characterized in that, be that the pollution section, industrialization villages and small towns that is B using width is separated into water purification membrane filtration section, biological grid fillter section, wetland and arranges that 3 continuous different sections of section are as sewage treatment unit, wherein front 2 sections are sewage collecting section; First sewage enter length is L
1water purification membrane filtration section, certainly flowing to length is L
2biological grid fillter section, then to whole pollution section according to 0.015kg/m
2density is thrown in biological substrate modifier substrate improvement is carried out in section, and it is L that sewage flows into length again
3wetland arrange section, afterwards again according to 0.02kg/m
2density throw in spiral shell, a species of small clam living in fresh water, according to 0.5/m
2density throw in huge oyster and the polluted river water of whole section is implemented to zoobenthos control support; Wherein water purification membrane filtration segment length L
1according to the main sewage outfalls setting in affiliated section, by the collected sewage in this section, account for and administer 70% of total sewage quantity of collecting section and determine, other length of two sections is respectively: L
2=0.3L
1, L
3=1.5L
1.
2. industrialization according to claim 1 villages and small towns polluted river water purifies and water surrounding ecological restoring method, it is characterized in that, described biological substrate modifier is lime, clay and the soil ulmin that contains microbial preparation.
3. industrialization according to claim 1 villages and small towns polluted river water purifies and water surrounding ecological restoring method, it is characterized in that, in water purification membrane filtration section, take the sewage discharge mouth of pipe of concentrating distribution as layout points, according to 15% of this section of water surface area, arrange that artificial aquatic weed is to sewage simple filtration, then arrange that by 25% of this section of water surface area efficient water purification film carries out depth type filtration to sewage.
4. industrialization according to claim 1 villages and small towns polluted river water purifies and water surrounding ecological restoring method, it is characterized in that, in biological grid fillter section (II), take the sewage discharge mouth of pipe that sporadicly distributes as layout points, according to 22% of this section of water surface area, arrange that biological grid further filters water.
5. industrialization according to claim 1 villages and small towns polluted river water purifies and water surrounding ecological restoring method, it is characterized in that, at wetland, arrange section, according to 25% of this section of water surface area, arrange floating-island type wetland, along water (flow) direction, every 8m, arrange a place, wet land filler reasonable Arrangement, on buoyancy aid, is formed to filler buoyancy aid, reasonably combined plantation waterplant up.
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| CN103693742A (en) * | 2013-12-19 | 2014-04-02 | 常州大学 | Method for treating sewage of scattered village peasant households by aquatic animal and plant purification pond |
| CN104773830A (en) * | 2014-01-10 | 2015-07-15 | 无锡市蓬勃环保科技有限公司 | Method for artificial waterweed-nitrogen-phosphor chelating agent combined fast long-acting purification of polluted water |
| CN107487946A (en) * | 2017-09-21 | 2017-12-19 | 中交生态环保投资有限公司 | A kind of deflector type black and odorous water in-situ treatment system and processing method |
| CN107986448A (en) * | 2018-01-06 | 2018-05-04 | 孔令聪 | A kind of administering method of ecology of water |
| CN109455873A (en) * | 2018-10-11 | 2019-03-12 | 常州大学 | A method of village initial rainwater is purified using the drainage ditch in southern village |
| CN110577338A (en) * | 2019-10-12 | 2019-12-17 | 中铁四川生态城投资有限公司 | Natural revetment ecological purification system and purification method thereof |
| CN113354073B (en) * | 2021-05-17 | 2022-06-24 | 中国环境科学研究院 | In-situ water body ecological restoration system for rural black and odorous water body restoration |
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| KR100818120B1 (en) * | 2006-11-10 | 2008-04-01 | 오세정 | Natural type river purification apparatus |
| CN102001719B (en) * | 2010-09-30 | 2012-07-18 | 常州大学 | Micron-nano-sized aerator |
| CN102010071A (en) * | 2010-10-29 | 2011-04-13 | 上海优博环境工程有限公司 | Combined high-efficiency river water quality purification process |
| CN102219339B (en) * | 2011-05-09 | 2012-11-07 | 南京大学 | Modular system for purification of polluted river water body and application of the same |
| CN202322497U (en) * | 2011-09-08 | 2012-07-11 | 武汉大学 | Multifunctional clear water carrier system |
| KR101175306B1 (en) * | 2011-10-04 | 2012-08-20 | 이문기 | Artificial waterweed island with fiber filter |
| CN102674556B (en) * | 2012-05-24 | 2013-07-03 | 河海大学 | Composite ecological floating bed for providing biotope |
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Effective date of registration: 20201215 Address after: 241000 building B6, comprehensive service zone, high tech Zone, Wuhu City, Anhui Province Patentee after: ANHUI SHUIYUN ENVIRONMENTAL PROTECTION Co.,Ltd. Address before: Gehu Lake Road Wujin District 213164 Jiangsu city of Changzhou province No. 1 Patentee before: CHANGZHOU University |
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