CN102491583A - Constructed wetland with sewage treatment function - Google Patents
Constructed wetland with sewage treatment function Download PDFInfo
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- CN102491583A CN102491583A CN2011103632796A CN201110363279A CN102491583A CN 102491583 A CN102491583 A CN 102491583A CN 2011103632796 A CN2011103632796 A CN 2011103632796A CN 201110363279 A CN201110363279 A CN 201110363279A CN 102491583 A CN102491583 A CN 102491583A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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Abstract
The invention relates to an environmental project able to treat sewage, especially to a constructed wetland with a sewage treatment function. According to the technical scheme of the invention, the constructed wetland with a sewage treatment function is characterized by comprising a wetland main body composed of a plant and a filling material. The wetland main body is provided with a heating functional device, an aerobic functional device, a carbon source adding and denitrification functional device, a physicochemical adsorption functional device and a sludge discharge functional device. The carbon source adding and denitrification functional device consists of a hollow filtering cavity and a carbon source substance displaced in the hollow part of the hollow filtering cavity. The physicochemical adsorption functional device includes a hollow filtering cavity and a fine-grained physicochemical adsorption filling material disposed in the hollow part of the hollow filtering cavity. By means of the above scheme, the invention overcomes problems existing in prior art, and provides a novel constructed wetland with a sewage treatment function, wherein, the constructed wetland has the advantages of high removal efficiency, stable operation, and difficult obstruction, etc.
Description
Technical field
The present invention relates to a kind of environmental engineering, be meant artificial swamp especially with WWT function with WWT.
Background technology
Artificial swamp is used widely in the vast rural area of China, samll cities and towns as a kind of sanitary sewage disposal technique means cheaply, and control pollution of area source, control body eutrophication etc. has been made important contribution.
Most of artificial wetland exists following problems in application process at present: 1, the phosphorus removal functional of artificial swamp mainly is achieved through the materialization absorption of filler, in general; Filler is tiny more, and its materialization adsorption effect to phosphorus is good more, but the meticulous obstruction that causes artificial swamp again easily of filler; Therefore in the practical application of artificial swamp; Often select the particle diameter of dephosphorization filler bigger, of the patent of invention that application number is 200910236388.4, the patent No. is ZL200610096747.7, this has just reduced the phosphorus removal functional of artificial swamp to a certain extent; On the other hand; For the artificial swamp of common practical application, after filler suction phosphorus is saturated, when changing filler like needs; Then often to change the filler in the whole wetland, thus can since destruction plant, difficulty such as great in constructing amount be difficult to carry out; 2, during winter operation, low excessively temperature can cause that constructed wetland plant is dead and influence treatment effect, even can cause freezing and artificial swamp can't normally be moved; 3, artificial swamp tend at its some settlings of bottom accumulation, and traditional artificial swamp does not often have good technique means to these sedimental removals after operation after a while; 4, traditional artificial swamp is when being provided with aerating apparatus; Place it in the centre of artificial swamp filler often; Thereby make water-gas biphase mass transfer process to make mass transfer process be affected, and be unfavorable for the maintenance replacing of aerator owing to the existence of occupying most of spatial solid phase filler in the wetland reduces fluidic turbulence states such as water, gas; 5, traditional artificial swamp since carbon source not enough, do not have a factor such as metastable reinforcement anoxic denitrification denitrogenation zone; And make its denitrogenation ability relatively poor; For addressing this problem; Application number be invention ways such as 200910026475.7 be through biomass such as direct input branch, wood chip, stalks in artificial swamp, but the direct adding of these biomass causes the obstruction of artificial swamp easily.
Summary of the invention
The present invention overcomes the problem that prior art exists, and provides a kind of wetland that makes to have the novel artificial swamp with WWT function that removal efficient is high, stable, be difficult for advantages such as obstruction.
Realize above-mentioned purpose; The present invention adopts following technical scheme: a kind of artificial swamp with WWT function; It is characterized in that: include the wetland main body that constitutes by plant and filler; Said wetland main body is provided with the functional device of heating, aerobic functional device, interpolation carbon source denitrification function device, materialization adsorption function device and spoil disposal functional device; The functional device of wherein heating includes hollow and filters cavity, solar water heater, water circulating pump and sprinkler head; The bottom of said filtration cavity is connected with solar water heater through pipeline; Solar water heater is connected with sprinkler head, and water circulating pump is connected on the pipeline and from sprinkler head, sprays through behind the solar water heater down to the water that constitutes the hollow bulb that filters cavity, and said aerobic functional device includes filler, aerator and the aeration tube that hollow is filtered cavity, placed filtration cavity hollow bulb; Described aeration tube one end is connected on the aerator; The other end places the bottom of hollow bulb of the filtration cavity of aerobic functional device, and said interpolation carbon source denitrification function device includes hollow and filters cavity and place this hollow to filter the carbon source material of the hollow bulb of cavity, and said materialization adsorption function device includes hollow and filters cavity and place this hollow to filter the fine particle materialization adsorption stuffing of the hollow bulb of cavity.
Through adopting such scheme, can reach following purpose: the functional device of 1, heating can guarantee that artificial swamp realizes the efficient purification efficiency to sewage in the winter time, thereby solves traditional artificial swamp is difficult to keep normal operation winter in northern China a difficult problem; 2, aerobic functional device, denitrification add the existence of carbon source functional device and materialization adsorption function device, improve the denitrogenation dephosphorizing efficient of traditional artificial swamp greatly; 3, the existence of mud discharging device can regularly efficiently be removed the mud of artificial swamp inside, compared with traditional artificial swamp, not only prolonged the work-ing life of artificial swamp, and management maintenance is more convenient, quick, efficient.
Further setting of the present invention is: described wetland main body top is provided with the insulation canopy of being processed by light transmissive material; The hollow of the said functional device of heating filter the inner housing of body skin that cavity includes the wall perforate, wall perforate and place body skin and inner housing between the interlayer filler; It is coniform or cylindric that the hollow of the said functional device of heating is filtered the cavity global shape, and it is consistent with the hollow filtering chamber body structure of the functional device of heating that said oxygen functional device, interpolation carbon source denitrification function device and the hollow separately in the materialization adsorption function device are filtered cavity; Become to removably connect between the body skin of the hollow filtration cavity in the said functional device of heating, aerobic functional device, interpolation carbon source denitrification function device and the materialization adsorption function device and the inner housing, in all dismountable interlayer that is arranged between body skin and the inner housing of described interlayer filler; Described inside and outside housing is processed by Steel Concrete or plastics or stainless steel; And inside and outside surface of shell percentage of open area is more than 30%; Bore dia is below 3 cm; Described interlayer filler is the one or more combination in natural pebble, quartz sand, plastic filler, the slag, and the particle diameter diameter is greater than inside and outside housing bore diameter; The intravital filler of hollow filtering chamber of said aerobic functional device is the filler of suspension mikrobe or attached microbial; The carbon source material of said interpolation carbon source denitrification function device is natural biomass such as fermentation or unfermentable stalk, bark, hay; Also can be artificial synthetic methyl alcohol, glucose, starch pharmaceutical chemicals, the fine particle materialization adsorption stuffing of said materialization adsorption function device is the one or more combination in hydrated calcium silicate, Wingdale, sponge iron, flyash, natural zeolite, the medical stone; Described spoil disposal functional device includes and filters cavity, takes out mud vacuum pump and mud-removing bucket, and mud-removing bucket is arranged on the filtration cavity bottom, takes out on the spoil disposal pipeline that the mud vacuum pump is arranged on mud-removing bucket.
The purpose that the present invention further is provided with is: can make The dissolved and tiny particulate pollutant between each functional device and artificial swamp main body packing layer, freely to exchange; Oarse-grained pollutent then can not get into each functional device or get into artificial swamp from each functional device by artificial swamp is inner; The hollow of each functional device filtration cavity special construction can make the materialization adsorption stuffing of more tiny particle diameter can be added in the artificial swamp in addition; Realization is difficult to use tiny materialization adsorption stuffing to sacrifice a difficult problem that loading capacity be made into bulk filler thereby solve in traditional artificial swamp for avoiding stopping up to the removal of The dissolved ammonia nitrogen and phosphorus; Can when denitrifying carbon sources such as the stalk that adds natural or fermentation, leaf, hay,, reduce the carbon source interpolation and cause the artificial swamp possibility of jamming through the interception of special construction; Can avoid causing obstruction, filter the formed relatively independent zone of cavity through hollow simultaneously, can improve the effect of aeration because of the prolific mikrobe of aeration oxygen replenishing gets into artificial swamp filler inside; Filter the filteration of the interlayer filler of cavity simultaneously through hollow, the feasible heating cycle sewage relative clean that gets into solar water heater has been avoided stopping up because of sewage gets into the water-heater that possibly cause.Hollow filtration cavity has reactivity in addition; Inner housing and interlayer filler can take out from body skin at any time; Realization is to the replacing of materials such as the materialization adsorption stuffing that adds in the space in the inner housing, denitrifying carbon source, can realize simultaneously the mikrobe that grows in the inner housing and the suspended substance of interlayer filler interception etc. are realized cleaning.
Below in conjunction with accompanying drawing the present invention is further described.
Description of drawings
Fig. 1 is the general illustration of the artificial swamp of the embodiment of the invention;
Fig. 2 is the functional device structural representation of heating of the embodiment of the invention;
Fig. 3 is the aerobic functional device structural representation of the embodiment of the invention;
Fig. 4 is the interpolation carbon source denitrification function apparatus structure synoptic diagram of the embodiment of the invention;
Fig. 5 is the materialization adsorption function apparatus structure synoptic diagram of the embodiment of the invention;
Fig. 6 is the spoil disposal functional device structural representation of the embodiment of the invention.
Embodiment
Like Fig. 1-shown in Figure 6; A kind of artificial swamp with WWT function; Include the wetland main body 2 that constitutes by plant and filler; Said wetland main body 2 is provided with the functional device 11 of heating, aerobic functional device 12, adds carbon source denitrification function device 13, materialization adsorption function device 14 and spoil disposal functional device 15; The functional device 11 of wherein heating includes hollow and filters cavity 111, solar water heater 112, water circulating pump 113 and sprinkler head 114; The bottom of said filtration cavity 111 is connected with solar water heater 112 through pipeline; Solar water heater 112 is connected with sprinkler head 114; Water circulating pump 113 is connected on the pipeline and from sprinkler head 114, sprays through solar water heater 112 backs down to the water that constitutes the hollow bulb that filters cavity 111, and said aerobic functional device 12 includes hollow and filters cavity 121, places the filler 122, aerator 123 and the aeration tube 124 that filter cavity 121 hollow bulbs, and described aeration tube 124 1 ends are connected on the aerator 123; The other end places the bottom of hollow bulb of the filtration cavity of aerobic functional device; Said interpolation carbon source denitrification function device 13 includes hollow and filters cavity 131 and place this hollow to filter the carbon source material 132 of the hollow bulb of cavity 131, and said materialization adsorption function device 14 includes hollow and filters cavity 141 and place this hollow to filter the fine particle materialization adsorption stuffing 142 of the hollow bulb of cavity 141, and described spoil disposal functional device 15 includes and filters cavity 151, takes out mud vacuum pump 152 and mud-removing bucket 153; Mud-removing bucket 153 is arranged on and filters cavity 151 bottoms, takes out on the spoil disposal pipeline that mud vacuum pump 152 is arranged on mud-removing bucket 153; Described wetland main body top is provided with the insulation canopy of being processed by light transmissive material 3, certainly in the higher south of temperature, and the place that can not freeze winter, we also can not be provided with insulation canopy 3.
In embodiments of the present invention; The hollow of the said functional device 11 of heating filter the inner housing 1112 of body skin 1111 that cavity 111 includes the wall perforate, wall perforate and place body skin and inner housing between interlayer filler 1113; It is coniform or cylindric that the hollow of the said functional device 11 of heating is filtered cavity 111 global shapes; Said oxygen functional device 12, adding carbon source denitrification function device 13 and the hollow separately in the materialization adsorption function device 14, to filter cavity consistent with the hollow filtering chamber body structure of the functional device 15 of heating; Become to removably connect between the said functional device 11 of heating, aerobic functional device 12, the body skin that adds the hollow filtration cavity in carbon source denitrification function device 13 and the materialization adsorption function device 14 and the inner housing; In all dismountable interlayer that is arranged between body skin and the inner housing of described interlayer filler, be provided with like this to add and change filler and the interlayer filler is more convenient.In embodiments of the present invention; Inside and outside housing of above-mentioned each device is processed by Steel Concrete or plastics or stainless steel; And inside and outside surface of shell percentage of open area is more than 30%; Bore dia is below 3 cm, and described interlayer filler is the one or more combination in natural pebble, quartz sand, plastic filler, the slag, and the particle diameter diameter is greater than inside and outside housing bore diameter.The filler 122 that the hollow of said aerobic functional device 12 is filtered in the cavity 121 is the filler of suspension mikrobe or attached microbial; The carbon source material of said interpolation carbon source denitrification function device 13 is natural biomass such as fermentation or unfermentable stalk, bark, hay; Also can be artificial synthetic methyl alcohol, glucose, starch pharmaceutical chemicals, the fine particle materialization adsorption stuffing of said materialization adsorption function device 14 is the one or more combination in hydrated calcium silicate, Wingdale, sponge iron, flyash, natural zeolite, the medical stone.
Further embodiment of the present invention; Sewage with No. one building, students' dormitory, higher education garden, tea hill, Wenzhou City is a process object; Amount to population 58 people in No. one building, a day sewage generating capacity is about 12 tons, selects No. one green lawn before the building to be transformed into the artificial swamp treatment unit.Artificial swamp main functionality device length and width height is respectively 25m * 5m * 1m, and whole artificial swamp is positioned at the inside, greenhouse of glass material, and the artificial swamp filler body is the natural pebble of diameter 5cm-10cm, surface plantation parasol grass and Canna generalis Bailey.Inner at artificial swamp; 1 12,3 of 11,3 aerobic aeration functional device of functional device of heating is set respectively adds carbon source denitrification function device 13; 3 materialization adsorption function devices 14 are taken out mud functional device 15 and can be utilized denitrification function device 13 and materialization adsorption function device 14 temporarily.Above-mentioned all functions device inner and outer shell is a skeleton construction, and the body skin internal diameter is 50cm, and housing is thick to be 3cm; The inner housing internal diameter is 34cm, and housing is thick to be 3cm, and the inner and outer shell percentage of open area is 50%; The perforate aperture is 0.8cm, and it is the quartz sand of 1cm that the interlayer filler adopts particle diameter.The functional device 11 accessory solar water heaters of heating are arranged on glasshouse chamber top, and it is that percentage of open area is the pvc pipe of 10% 100 mm that water distributor adopts diameter, and the aperture is 0.5 mm, and pvc pipe is long to be 5m, is placed on the ingress of artificial swamp.The aerobic aeration functional device 12 inner fillers 122 of placing fluidized are used to the mikrobe that grows, and realize quick degradation of organic substances and ammonia nitrogen.What placed denitrification function device 13 its inside of interpolation carbon source is wetland harvesting plant by fermentation, changes once in about 2 months.Materialization adsorption function device 14 inner pulverulent lime stone and the zeolites placed are realized the removal to phosphoric acid salt in the water and ammonia nitrogen, and the materialization adsorption stuffing was changed once in 5 months.Take out mud functional device 15 and utilize denitrification function device 13 and materialization adsorption function device 14 temporarily, extracting frequency is 1 year 1 time.After above-mentioned artificial swamp construction is accomplished, through 24 months operation, COD, the NH of device water inlet
4 +-N, TN, TP concentration is average out to 125.4mg/L respectively, 18.7mg/L, and 37.6mg/L, 10.1 mg/L, the water outlet mean concns is 10.1mg/L after system handles, 0.5 mg/L, 1.0 mg/L, 0.05mg/L reaches national town sewage discharging one-level A standard.
Claims (7)
1. artificial swamp with WWT function; It is characterized in that: include the wetland main body that constitutes by plant and filler; Said wetland main body is provided with the functional device of heating, aerobic functional device, interpolation carbon source denitrification function device, materialization adsorption function device and spoil disposal functional device; The functional device of wherein heating includes hollow and filters cavity, solar water heater, water circulating pump and sprinkler head; The bottom of said filtration cavity is connected with solar water heater through pipeline; Solar water heater is connected with sprinkler head; Water circulating pump is connected on the pipeline so that from sprinkler head, spray behind the water process solar water heater of the hollow bulb of formation filtration cavity; Said aerobic functional device includes hollow and filters cavity, places the filler, aerator and the aeration tube that filter the cavity hollow bulb, and described aeration tube one end is connected on the aerator, and the other end places the bottom of hollow bulb of the filtration cavity of aerobic functional device; Said interpolation carbon source denitrification function device includes hollow and filters cavity and place this hollow to filter the carbon source material of the hollow bulb of cavity, and said materialization adsorption function device includes hollow and filters cavity and place this hollow to filter the fine particle materialization adsorption stuffing of the hollow bulb of cavity.
2. the artificial swamp with WWT function according to claim 1 is characterized in that: described wetland main body top is provided with the insulation canopy of being processed by light transmissive material.
3. the artificial swamp with WWT function according to claim 1 and 2; It is characterized in that: the hollow of the said functional device of heating filter the inner housing of body skin that cavity includes the wall perforate, wall perforate and place body skin and inner housing between the interlayer filler; It is coniform or cylindric that the hollow of the said functional device of heating is filtered the cavity global shape, and it is consistent with the hollow filtering chamber body structure of the functional device of heating that said oxygen functional device, interpolation carbon source denitrification function device and the hollow separately in the materialization adsorption function device are filtered cavity.
4. the artificial swamp with WWT function according to claim 3; It is characterized in that: become to removably connect between the body skin of the hollow filtration cavity in the said functional device of heating, aerobic functional device, interpolation carbon source denitrification function device and the materialization adsorption function device and the inner housing, in all dismountable interlayer that is arranged between body skin and the inner housing of described interlayer filler.
5. according to claim 3 or 4 described artificial swamps with WWT function; It is characterized in that: described inside and outside housing is processed by Steel Concrete or plastics or stainless steel; And inside and outside surface of shell percentage of open area is more than 30%; Bore dia is below 3 cm, and described interlayer filler is the one or more combination in natural pebble, quartz sand, plastic filler, the slag, and the particle diameter diameter is greater than inside and outside housing bore diameter.
6. the artificial swamp with WWT function according to claim 1 and 2; It is characterized in that: the intravital filler of hollow filtering chamber of said aerobic functional device is the filler of suspension mikrobe or attached microbial; The carbon source material of said interpolation carbon source denitrification function device is natural biomass such as fermentation or unfermentable stalk, bark, hay; Also can be artificial synthetic methyl alcohol, glucose, starch pharmaceutical chemicals, the fine particle materialization adsorption stuffing of said materialization adsorption function device is the one or more combination in hydrated calcium silicate, Wingdale, sponge iron, flyash, natural zeolite, the medical stone.
7. the artificial swamp with WWT function according to claim 1 and 2; It is characterized in that: described spoil disposal functional device includes and filters cavity, takes out mud vacuum pump and mud-removing bucket; Mud-removing bucket is arranged on the filtration cavity bottom, takes out on the spoil disposal pipeline that the mud vacuum pump is arranged on mud-removing bucket.
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Cited By (19)
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| CN102689989A (en) * | 2012-06-14 | 2012-09-26 | 中国科学院水生生物研究所 | Method and device for supplementing vertical flow constructed wetland solid carbon source |
| CN103342419A (en) * | 2013-07-19 | 2013-10-09 | 山东大学 | Anaerobic artificial wetland unsupported thermal insulation system for treating oil extraction sewage in winter |
| CN103553271A (en) * | 2013-11-06 | 2014-02-05 | 北京师范大学 | Multi-stage treatment and purification process for groundwater pollution |
| CN105084548A (en) * | 2015-09-18 | 2015-11-25 | 合肥工业大学 | Efficient anti-blocking constructed wetland based on novel packed bed |
| CN105366815A (en) * | 2015-11-05 | 2016-03-02 | 江苏东珠景观股份有限公司 | Frame-style heat absorption artificial floating island |
| CN105724287A (en) * | 2016-02-19 | 2016-07-06 | 云南梦想起航农业科技有限公司 | Ecological environmental protection circulating planting and breeding method |
| CN105923904A (en) * | 2016-05-20 | 2016-09-07 | 和县伊迈炭业有限责任公司 | Biological packing for domestic sewage treatment and preparation method of biological packing |
| CN105923905A (en) * | 2016-05-20 | 2016-09-07 | 和县伊迈炭业有限责任公司 | Biological stuffing for industrial sewage treatment and preparation method thereof |
| CN106797906A (en) * | 2017-01-05 | 2017-06-06 | 南通大学 | A kind of circulation aquaculture system of utilization solar energy heat-storage |
| CN106882877A (en) * | 2017-02-24 | 2017-06-23 | 深圳十方清新生态环保科技有限公司 | A kind of method that drift is discharged in muddy water environment and row's silt purifier |
| CN107151056A (en) * | 2017-06-27 | 2017-09-12 | 郑州大学环境技术咨询工程有限公司 | It is a kind of to strengthen the horizontal drowned flow artificial wet land system of denitrification |
| CN107381837A (en) * | 2017-08-31 | 2017-11-24 | 上海勘测设计研究院有限公司 | Class drowned flow artificial wet land type method for treating water |
| CN107399833A (en) * | 2017-08-31 | 2017-11-28 | 上海勘测设计研究院有限公司 | Class drowned flow artificial wet land type water treatment system |
| CN108439590A (en) * | 2018-06-25 | 2018-08-24 | 郑州大学 | A kind of water course in situ nitrate nitrogen cutting device |
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| CN109867403A (en) * | 2017-12-01 | 2019-06-11 | 中国水利水电科学研究院 | A kind of processing unit and sewage water treatment method of dispersing type sewage |
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| CN102689989B (en) * | 2012-06-14 | 2013-12-11 | 中国科学院水生生物研究所 | Method and device for supplementing vertical flow constructed wetland solid carbon source |
| CN102689989A (en) * | 2012-06-14 | 2012-09-26 | 中国科学院水生生物研究所 | Method and device for supplementing vertical flow constructed wetland solid carbon source |
| CN103342419A (en) * | 2013-07-19 | 2013-10-09 | 山东大学 | Anaerobic artificial wetland unsupported thermal insulation system for treating oil extraction sewage in winter |
| CN103553271A (en) * | 2013-11-06 | 2014-02-05 | 北京师范大学 | Multi-stage treatment and purification process for groundwater pollution |
| CN103553271B (en) * | 2013-11-06 | 2015-11-04 | 北京师范大学 | A kind of groundwater pollution multiple-stage treatment purification process |
| CN105084548B (en) * | 2015-09-18 | 2017-06-30 | 合肥工业大学 | A kind of high efficient block artificial swamp based on new packing bed |
| CN105084548A (en) * | 2015-09-18 | 2015-11-25 | 合肥工业大学 | Efficient anti-blocking constructed wetland based on novel packed bed |
| CN105366815A (en) * | 2015-11-05 | 2016-03-02 | 江苏东珠景观股份有限公司 | Frame-style heat absorption artificial floating island |
| CN105724287A (en) * | 2016-02-19 | 2016-07-06 | 云南梦想起航农业科技有限公司 | Ecological environmental protection circulating planting and breeding method |
| CN105923904A (en) * | 2016-05-20 | 2016-09-07 | 和县伊迈炭业有限责任公司 | Biological packing for domestic sewage treatment and preparation method of biological packing |
| CN105923905A (en) * | 2016-05-20 | 2016-09-07 | 和县伊迈炭业有限责任公司 | Biological stuffing for industrial sewage treatment and preparation method thereof |
| CN106797906A (en) * | 2017-01-05 | 2017-06-06 | 南通大学 | A kind of circulation aquaculture system of utilization solar energy heat-storage |
| CN106882877A (en) * | 2017-02-24 | 2017-06-23 | 深圳十方清新生态环保科技有限公司 | A kind of method that drift is discharged in muddy water environment and row's silt purifier |
| CN107151056A (en) * | 2017-06-27 | 2017-09-12 | 郑州大学环境技术咨询工程有限公司 | It is a kind of to strengthen the horizontal drowned flow artificial wet land system of denitrification |
| CN107381837B (en) * | 2017-08-31 | 2019-11-29 | 上海勘测设计研究院有限公司 | Class drowned flow artificial wet land type method for treating water |
| CN107399833A (en) * | 2017-08-31 | 2017-11-28 | 上海勘测设计研究院有限公司 | Class drowned flow artificial wet land type water treatment system |
| CN107381837A (en) * | 2017-08-31 | 2017-11-24 | 上海勘测设计研究院有限公司 | Class drowned flow artificial wet land type method for treating water |
| CN107399833B (en) * | 2017-08-31 | 2019-11-29 | 上海勘测设计研究院有限公司 | Class drowned flow artificial wet land type water treatment system |
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| CN109867403B (en) * | 2017-12-01 | 2023-09-22 | 中国水利水电科学研究院 | Decentralized sewage treatment device and sewage treatment method |
| CN108439590A (en) * | 2018-06-25 | 2018-08-24 | 郑州大学 | A kind of water course in situ nitrate nitrogen cutting device |
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| CN109877152A (en) * | 2019-03-21 | 2019-06-14 | 贵州民族大学 | A kind of prosthetic device and restorative procedure for heavy metal ion in artificial swamp |
| CN111470631A (en) * | 2020-05-20 | 2020-07-31 | 兰州交通大学 | Constructed wetland system and method for tail water treatment of sewage treatment plant |
| CN111943453A (en) * | 2020-08-24 | 2020-11-17 | 中国矿业大学 | Acid coal gangue pile leaching wastewater treatment system and method |
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