CN201625504U - High-efficient deodorization device for bio-trickling filter - Google Patents
High-efficient deodorization device for bio-trickling filter Download PDFInfo
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- CN201625504U CN201625504U CN2010201395867U CN201020139586U CN201625504U CN 201625504 U CN201625504 U CN 201625504U CN 2010201395867 U CN2010201395867 U CN 2010201395867U CN 201020139586 U CN201020139586 U CN 201020139586U CN 201625504 U CN201625504 U CN 201625504U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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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
- Y02W10/10—Biological treatment of water, waste water, or sewage
Abstract
The utility model relates to a high-efficient deodorization device for a bio-trickling filter, which aims to resolve problems that dead microorganisms block the bio-trickling filter during operation so that the bio-trickling filter is high in resistance, unstable in obnoxious gas removal rate and short in operation period, is required to be back washed periodically and the like. A liquid collecting tray and a gas distributor are additionally arranged on the bio-trickling filter, thereby avoiding problems that dead microorganisms in packing of an upper section and a middle section are carried to the lower portion of the bio-trickling filter via circulation liquid to block the packing layer of the lower portion, simultaneously preventing the circulation liquid from over scouring the packing layer on the lower portion of the bio-trickling filter, and increasing amount of biological films on the surface of the packing layer of the lower portion. Continuous operation experiment results of petrochemical sewage plants show that resistance of the bio-trickling filter is smaller than 200 Pa/m, operation period of the bio-trickling filter is longer than two years, and the bio-tricking filter is not required to be back washed, is stable in obnoxious gas removal rate and directly achieves national discharge standard.
Description
Technical field
The utility model relates to a kind of foul gas biological treatment device, specifically by absorption, biodegradation, with the bio-trickling filter of stench in the complex effluvium gas and organic gas removal.
Background technology
Bio-trickling filter, also be the immobilized biological membrane washer, its structure is similar to biofilter, difference is that the top is equipped with spray system, constantly the liquid under the spray drips downwards by the surface of porous aggregate, often contain the needed nutriment of growth of microorganism in the spray liquid, and come humidity and pH value in the control appliance thus, the liquid method of circulation continuously makes most pollutant to be dissolved in the liquid.Set up the filler of attached microbial in the bio-trickling filter; for microbial growth, organic degraded provide condition; the inserts that is adopted is to be the inert material of Institute of Micro-biology's degraded; such as polypropylene pellets, pottery, charcoal, granular activated carbon etc., this provides possibility for life-span and the minimizing pressure drop that prolongs filler.Because superiority aspect deodorizing, bio-trickling filter has become the focus of domestic and international research, and Holland developed and is used to the bio-trickling filter handling high concentration, contain acid constituents in 1992.Levenrkusencai removes toluene with this method and has obtained good effect.
At present, bio-trickling filter is water distribution in the tower, gas distribution inequality in the subject matter that use exists, and dead microorganism is piled up and causes that filler stops up, and the cycle of operation is short.At these problems, carried out big quantity research, the one, biological research of dripping the rate tower structure: adopt the mode of spray liquid segmentation spray to solve the problem that water distribution is uneven and biomembrane is piled up as CN1752034A, but the segmentation spray can excessively wash away bio-trickling filter bottom packing layer, and dead microorganism is stopped up lower floor's filler.CN1557741A makes water distribution, gas distribution even by increasing gas, liquid distribution gas, stops up filler in order to prevent dead microorganism, has increased backwashing system, but has needed regularly carry out backwash to bio-trickling filter.CN101259367A is a kind of technology and device of removing the various mixed gases stench simultaneously, adopt different spray liquids to remove hydrogen sulfide and VOC respectively, backwashing system has been installed, and the periodic flushing bio-trickling filter has increased gas pretreatment device, regulate the tower gas temperature, and the air-flow that enters bio-trickling filter is fully mixed, the problem of existence is when handling the high concentration foul gas, to stop up easily, the filler of tower adopts hard material and software material to constitute, and the biofilm cycle is long.The 2nd, the research of bio-trickling tower packing: adopt reticulated polyurethane foam and two kinds of fillers of hard annular as CN200943056Y, when overcoming independent use polyurethane sponge plastics as filler, the easy compacting of filler, the short stream of gas, fixation of microbe be difficult for to upgrade and the easy shortcoming such as generation anaerobic zone of filler central authorities, and uses separately that the ring-like filler of rigid plastics occurs that packing specific area is little, porosity is low, shortcoming such as easy to be filmed not.CN2768882Y adopts a kind of gauze packing, makes the filler of difformity and size, solves biological blockage problem and the little problem of filler specific surface.More than two kinds of methods, adopt the big organic filler of voidage, prevented the obstruction of bio-trickling filter to a certain extent, but adopt organic filler fully, make the bio-trickling filter impact resistance poor, when fluctuation appears in foul gas concentration, cause the bottom biomembrane to come off in a large number.CN200510095104.6 discloses a kind of bio-trickling filter that is used for removing the air odorant pollutant, adopt the filler of two kinds of specifications, the granular filler of Tian Zhuaning distributes from big to small from bottom to top, the bulky grain filler is adopted in this tower bottom, voidage is big, has prevented that to a certain extent dead microorganism from stopping up, but with the growth of the cycle of operation, can cause the bottom packing layer to stop up, the stable operation backwashing period is only greater than two months.CN10112528A relates to a kind of Biotrickling filter of handling VOC, adopt the column type sleeve, from the centre to around gradually adopt ascending filler, by change in resistance the filling surface biomass is evenly distributed, but this method device structure complexity, its tangible tower bottom adopts the distribution of gas dish just can realize the radially uniform purpose of CONCENTRATION DISTRIBUTION.
By above research as can be seen, no matter be the change of bio-trickling tower structure, or the change of filler, all fundamentally do not solve the blockage problem of bio-trickling filter.
The utility model content
The purpose of this utility model provides a kind of bio-trickling filter of handling complex effluvium gas, be recycled liquid with the dead microorganism in solution upper strata and take the bio-trickling filter bottom to, stop up the problem of bio-trickling filter bottom packing layer, prevent also simultaneously that circulation fluid segmentation spray from excessively washing away bio-trickling filter bottom packing layer, thereby improve lower floor's filling surface biomembrane quantity; The utility model bio-trickling filter is stable, and resistance is low, and impact resistance is strong, does not need to carry out backwash, and foul gas removes stable, and the cycle of operation is long.
A kind of high-performance bio drips the filter tower deodorization device and comprises tower body 1, air inlet pipe 2, gas distributor 3 in the tower, circulation liquid bath 4, recycle liquid pump 5, circulation feed tube 6, circulating fluid distributor 7, blast pipe 8, on loading respectively in the tower body 1, in, following three sections fillers, every section filler top all is provided with circulating fluid distributor 7, tower body 1 bottom is provided with gas distributor 3 in the tower, gas distributor 3 is connected with air inlet pipe 2 in the tower, circulating fluid distributor 7 in the tower body 1 is communicated to circulation liquid bath 4 by circulation feed tube 6 and recycle liquid pump 5, the below that it is characterized in that epimere and stage casing filler is respectively equipped with circulating fluid catch tray 9, circulating fluid catch tray 9 is by the circulating fluid delivery line 10 in tower body 1 outside, be communicated to circulation liquid bath 4, be respectively equipped with a plurality of gas distribution tubes 11 on the circulating fluid catch tray 9.
Circulating fluid catch tray 9 described in the utility model can be one-body molded with tower body 1, and also moulding separately is fit in the tower again, and with tower wall seal welding.Circulating fluid catch tray 9 is used to collect epimere and stage casing circulation fluid, enter circulation liquid bath 4 by circulating fluid delivery line 10 then, avoid dead microorganism in epimere and the stage casing filler to be recycled liquid and taken the bio-trickling filter bottom to, stop up the bottom packing layer, simultaneously can prevent that also circulation fluid from excessively washing away bio-trickling filter bottom packing layer, keep the certain biomembrane quantity of lower floor's filling surface, thereby improve deodorization efficiency.
Circulating fluid catch tray 9 is provided with a plurality of gas distribution tubes 11, the mouth of pipe of gas distribution tube is 30～50mm apart from the height on circulating fluid catch tray surface, so just can be so that gas passes through from bottom to top from a plurality of gas distribution tubes on the circulating fluid catch tray, and realize gas is carried out gas distribution twice, make the gas radial distribution even, and because the mouth of pipe of gas distribution tube has certain height apart from circulating fluid catch tray surface, therefore the circulation fluid that flows down from top packing section can be collected on the circulating fluid catch tray, enter circulation liquid bath 4 by circulating fluid delivery line 10 then.
Described high-performance bio drips the filter tower deodorization device and also comprises nutrition liquid bath 12, by nutrition liquid pump 13 nutrient solution is imported circulation liquid bath 4, and purpose provides the required nutrient of growth of microorganism.
Also be provided with aeration tube 14 in the described circulation liquid bath 4, aeration tube 14 is provided with a plurality of aeration heads 15, air blast 16 provides aeration by a plurality of aeration heads 15 on the aeration tube 14 to circulation liquid bath 4, make the microorganism in the circulation liquid bath 4 be in oxygen condition all the time, thereby reduce the discharge capacity of dead microorganism.
High-performance bio of the present utility model drips three sections fillers in tower body 1 interior branch three sections fillings upper, middle and lower of filter tower, wherein, the filler that hypomere is loaded is the uniform ceramics filling of particle diameter, the filler that epimere and stage casing are loaded is two-layer combined stuffing up and down, it is the uniform medium-soft plastic filler of particle diameter at the middle and upper levels, and lower floor is the uniform ceramics filling of particle diameter.The two-layer packed height ratio up and down of combined stuffing is 2～8: 1～4.The uniform semi soft packing of particle diameter that the upper strata is loaded can make bio-trickling filter when keeping lower drag, and radially concentration is identical to make foul gas, and axial concentration changes evenly; The ceramics filling voidage of lower floor is little, and haydite can play the gas distribution effect, also utilizes the adsorptivity of ceramics filling simultaneously, improves impact resistance.
The course of work that the utility model high-performance bio drips the filter tower deodorization device is as follows:
Foul smell enters gas distributor 3 in the tower from air inlet pipe 2, gas evenly enters the bottom of tower body 1, successively by down, in, last three sections fillers, the gas distribution tube 11 on circulating fluid catch tray 9 in stage casing and epimere, make the foul gas after the hypomere filler is handled carry out further evenly distributing, discharge from blast pipe 8 at last; Recycle liquid pump 5 is extracted out circulation fluid by circulation liquid bath 4, divide three strands to enter in the tower body 1 by circulation feed tube 6, after circulating fluid distributor 7 evenly distributes respectively from last, in, following three sections fillers top flows down, when circulation fluid passes through packing layer, required moisture of microorganism and nutriment are provided on the one hand, simultaneously dead microorganism is taken out of bio-trickling filter, after the circulation fluid that epimere and stage casing packing layer flow down is collected by circulating fluid catch tray 9, enter circulation liquid bath 4 through circulating fluid delivery line 10, the circulation fluid that the hypomere packing layer flows down flows directly into circulation liquid bath 4; Form variation according to circulation fluid, in time open nutrition liquid pump 13, the nutrient solution in the nutrition liquid bath 12 is squeezed into circulation liquid bath 4, adjust the ratio of nutrient in the circulation liquid bath 4; Process of the test is opened air blast 16, through aeration tube 14, by aeration head 15, gives circulation liquid bath 4 aerations continuously, makes the microorganism in the circulation liquid bath 4 be in the sample state all the time.
Compared with prior art, the utility model apparatus features is:
1, increases circulating fluid catch tray and circulating fluid delivery line in the rate tower by dripping at biology, deliver to the circulation liquid bath by the circulating fluid delivery line behind the circulation fluid Fractional Collections with bio-trickling filter, solve dead microorganism and be recycled liquid and take the bio-trickling filter bottom to, stopped up the problem of bio-trickling filter bottom packing layer; Prevent that also circulation fluid from excessively washing away bio-trickling filter bottom packing layer, improved lower floor's filling surface biomembrane quantity.Every layer of circulation fluid introduced the circulation liquid bath respectively, avoided the dead microorganism in top to enter the middle part, and top, the dead microorganism in middle part enter the bottom, cause the bottom ceramics filling to stop up.
2, adopt haydite and medium-soft plastics combined stuffing, foul gas changed evenly, radially concentration equates in the bio-trickling filter axial concentration, make bio-trickling filter radially, axially biomembrane is evenly distributed, and has solved gas short circuit and channel effectively.
3, the utility model bio-trickling filter deodorization device biofilm cycle is short, resistance is low, removal efficiency is stable, the cycle of operation is long.Because the bio-trickling tower bottom adopts ceramics filling, makes full use of the fast character of ceramics filling biofilm, shorten cultivation, domestication, the extension of microorganism and touch the cycle, stage casing and epimere adopt the mode of medium-soft plastic filler and ceramics filling combination.Medium-soft plastic filler in upper strata can make bio-trickling filter when keeping lower drag, and radially concentration is identical to make foul gas, and axial concentration changes evenly; The ceramics filling voidage of lower floor is little, and haydite can play the gas distribution effect, also utilizes the adsorptivity of ceramics filling simultaneously, improve impact resistance, therefore adopt this filler combination mode can make the foul gas removal efficiency stable, the continuous cycle of operation is long, does not need to carry out backwash.
4, adopt bio-trickling filter deodorization device of the present utility model to carry out the Sewage Plant foul gas and remove test, the cultivation biofilm cycle of microorganism shortens to 5 days, the bio-trickling filter resistance is 1800Pa/m, the cycle of operation was greater than 2 years continuously, do not need to carry out backwash, the foul gas removal efficiency is stable, can directly reach discharging standards.
Description of drawings
Fig. 1 drips filter tower deodorization device schematic diagram for the utility model high-performance bio;
Fig. 2 drips the circulating fluid catch tray plane of filter tower for the utility model high-performance bio;
Fig. 3 drips the circulating fluid catch tray profile of filter tower for the utility model high-performance bio;
The 1-tower body, 2-air inlet pipe, gas distributor in the 3-tower, 4-circulation liquid bath, 5-recycle liquid pump, 6-circulation feed tube, 7-circulating fluid distributor, 8-blast pipe, 9-circulating fluid catch tray, 10-circulating fluid delivery line, 11-gas distribution tube, 12-nutrition liquid bath, 13-nutrition liquid pump, the 14-aeration tube, 15-circulation liquid bath aeration head, 16-air blast
The specific embodiment
The utility model high-performance bio is dripped the filter tower deodorization device and the course of work describes in further detail below in conjunction with drawings and Examples.
The high-performance bio that Figure 1 shows that the utility model processing foul gas drips the filter tower deodorization device, comprise tower body 1, air inlet pipe 2, gas distributor 3 in the tower, circulation liquid bath 4, recycle liquid pump 5, circulation feed tube 6, circulating fluid distributor 7, blast pipe 8, on loading respectively in the tower body 1, in, following three sections fillers, every section filler top all is provided with circulating fluid distributor 7, tower body 1 bottom is provided with gas distributor 3 in the tower, gas distributor 3 is connected with air inlet pipe 2 in the tower, circulating fluid distributor 7 in the tower body 1 is communicated to circulation liquid bath 4 by circulation feed tube 6 and recycle liquid pump 5, the below of epimere and stage casing filler is respectively equipped with circulating fluid catch tray 9, circulating fluid catch tray 9 is by the circulating fluid delivery line 10 in tower body 1 outside, be communicated to circulation liquid bath 4, a plurality of gas distribution tubes 11 are arranged on the circulating fluid catch tray 9, and the mouth of pipe of gas distribution tube is 40mm apart from the height on circulating fluid catch tray surface; This device also comprises a nutrition liquid bath 12, by nutrition liquid pump 13 nutrient solution is imported circulation liquid bath 4, also be provided with aeration tube 14 in the described circulation liquid bath 4, aeration tube 14 is provided with a plurality of aeration heads 15, and air blast 16 provides aeration by a plurality of aeration heads 15 on the aeration tube 14 to circulation liquid bath 4.
Foul gas enters gas distributor 3 in the tower at the bottom of the tower by air inlet pipe 2, in tower after gas distributor 3 uniform distributions, successively by bio-trickling filter hypomere, stage casing and epimere filler; Through the gas distribution tube circulation fluid catch tray 9 of stage casing and epimere filler below on 11 further even gas distributions, from the blast pipe 8 of top of tower discharge respectively by purified gas for foul gas; Circulation fluid is extracted out from circulating slot 4 by recycle liquid pump 4, be assigned to by circulation feed tube 6 on the circulating fluid distributor 7 of the epimere, stage casing of tower body 1 and hypomere filler top, pass through epimere then respectively, under stage casing and the hypomere filler stream, the circulation fluid that epimere and stage casing flow down is collected in respectively on the circulating fluid catch tray 9 of this section filler below, flow back to circulation liquid bath 4 via circulating fluid delivery line 10, the circulation fluid under the hypomere filler stream directly flows back in the circulation liquid bath 4; Form variation according to circulation fluid, in time open nutrition liquid pump 13, the nutrient solution in the nutrition liquid bath 12 is squeezed into circulation liquid bath 4, adjust the ratio of nutrient in the circulation liquid bath 4; Process of the test is opened air blast 16, through aeration tube 14, by aeration head 15, gives circulation liquid bath 4 aerations continuously, makes the microorganism in the also groove 4 of circulating be in the sample state all the time.
Fig. 2,3 drips filter tower circulating fluid catch tray plane and profile for high-performance bio, in bio-trickling filter, increase circulating fluid catch tray and gas distribution tube, deliver to the circulation liquid bath by the circulating fluid delivery line after thing can being dripped the circulation fluid Fractional Collections of filter tower, having solved dead microorganism is recycled liquid and takes the bio-trickling filter bottom to, stop up bio-trickling filter bottom packing layer, prevent that also circulation fluid from excessively washing away bio-trickling filter bottom packing layer, improved lower floor's filling surface biomembrane quantity; Increase gas distribution tube and can make foul gas packing layer radial distribution even, avoid the distribution of gas inequality, cause the growth of microorganism inequality.
Claims (7)
1. a high-performance bio drips the filter tower deodorization device, comprise tower body (1), air inlet pipe (2), gas distributor (3) in the tower, circulation liquid bath (4), recycle liquid pump (5), circulation feed tube (6), circulating fluid distributor (7), blast pipe (8), on loading respectively in the tower body (1), in, following three sections fillers, every section filler top all is provided with circulating fluid distributor (7), tower body (1) bottom is provided with gas distributor (3) in the tower, gas distributor (3) is connected with air inlet pipe (2) in the tower, circulating fluid distributor (7) in the tower body (1) is communicated to circulation liquid bath (4) by circulation feed tube (6) and recycle liquid pump (5), the below that it is characterized in that epimere and stage casing filler is respectively equipped with circulating fluid catch tray (9), circulating fluid catch tray (9) is by the circulating fluid delivery line (10) in tower body (1) outside, be communicated to circulation liquid bath (4), be respectively equipped with a plurality of gas distribution tubes (11) on the circulating fluid catch tray (9).
2. high-performance bio as claimed in claim 1 drips the filter tower deodorization device, and the mouth of pipe that it is characterized in that described gas distribution tube is 30～50mm apart from the height on circulating fluid catch tray surface.
3. high-performance bio as claimed in claim 1 drips the filter tower deodorization device, it is characterized in that the circulating fluid catch tray can be one-body molded with tower body, and also moulding separately is fit in the tower again, and with tower wall seal welding.
4. high-performance bio as claimed in claim 1 drips the filter tower deodorization device, it is characterized in that also comprising nutrition liquid bath (12), by nutrition liquid pump (13) nutrient solution is imported circulation liquid bath (4).
5. high-performance bio as claimed in claim 1 drips the filter tower deodorization device, it is characterized in that being provided with aeration tube (14) in the described circulation liquid bath (4), and aeration tube (14) is provided with a plurality of aeration heads (15).
6. high-performance bio as claimed in claim 1 drips the filter tower deodorization device, it is characterized in that dividing three sections in the tower body loads the three sections fillers in upper, middle and lower, hypomere is loaded the uniform ceramics filling of particle diameter, two-layer combined stuffing is up and down all loaded in epimere and stage casing, it is the uniform medium-soft plastic filler of particle diameter at the middle and upper levels, and lower floor is the uniform ceramics filling of particle diameter.
7. high-performance bio as claimed in claim 6 drips the filter tower deodorization device, it is characterized in that the two-layer packed height ratio up and down of epimere and stage casing combined stuffing is 2～8: 1～4.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201395867U CN201625504U (en) | 2010-03-10 | 2010-03-10 | High-efficient deodorization device for bio-trickling filter |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010201395867U CN201625504U (en) | 2010-03-10 | 2010-03-10 | High-efficient deodorization device for bio-trickling filter |
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| CN201625504U true CN201625504U (en) | 2010-11-10 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188899A (en) * | 2010-03-10 | 2011-09-21 | 中国石油天然气股份有限公司 | Deodorizing device and deodorizing method of bio-trickling filtration tower |
| CN102423626A (en) * | 2011-08-23 | 2012-04-25 | 上海交通大学 | Apparatus and method for removing malodorous gas by using biological carbon |
| CN102614774A (en) * | 2012-04-06 | 2012-08-01 | 哈尔滨工业大学 | Biological treatment system of sludge odor and method for treating sludge odor by utilizing same |
| CN103394215A (en) * | 2013-07-15 | 2013-11-20 | 浙江斯科能科技股份有限公司 | Filter |
| CN104478174A (en) * | 2014-12-19 | 2015-04-01 | 新疆环境工程技术有限责任公司 | High-salt-content dyeing wastewater treatment recovery zero discharge integration method |
| CN105236560A (en) * | 2015-11-06 | 2016-01-13 | 江苏大湖环境工程有限公司 | Biological sewage treatment filter box |
| CN107601652A (en) * | 2017-09-28 | 2018-01-19 | 江苏大湖环境工程有限公司 | One kind layering bio-trickling case |
| CN108483629A (en) * | 2018-05-29 | 2018-09-04 | 重庆理工大学 | Drip filter formula biomembrane reaction tower |
| CN109455817A (en) * | 2018-12-25 | 2019-03-12 | 江西省科学院 | A kind of layering jet aeration tower biological denitrogenation dephosphorizing reactor |
-
2010
- 2010-03-10 CN CN2010201395867U patent/CN201625504U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188899B (en) * | 2010-03-10 | 2013-02-20 | 中国石油天然气股份有限公司 | Deodorizing device and deodorizing method of bio-trickling filtration tower |
| CN102188899A (en) * | 2010-03-10 | 2011-09-21 | 中国石油天然气股份有限公司 | Deodorizing device and deodorizing method of bio-trickling filtration tower |
| CN102423626A (en) * | 2011-08-23 | 2012-04-25 | 上海交通大学 | Apparatus and method for removing malodorous gas by using biological carbon |
| CN102614774A (en) * | 2012-04-06 | 2012-08-01 | 哈尔滨工业大学 | Biological treatment system of sludge odor and method for treating sludge odor by utilizing same |
| CN103394215A (en) * | 2013-07-15 | 2013-11-20 | 浙江斯科能科技股份有限公司 | Filter |
| CN104478174B (en) * | 2014-12-19 | 2016-06-29 | 新疆环境工程技术有限责任公司 | High saliferous treatment of dyeing wastewater reuse zero-emission integrated approach |
| CN104478174A (en) * | 2014-12-19 | 2015-04-01 | 新疆环境工程技术有限责任公司 | High-salt-content dyeing wastewater treatment recovery zero discharge integration method |
| CN105236560A (en) * | 2015-11-06 | 2016-01-13 | 江苏大湖环境工程有限公司 | Biological sewage treatment filter box |
| CN105236560B (en) * | 2015-11-06 | 2018-01-02 | 江苏大湖环境工程有限公司 | Sewage Biological Treatment filter box |
| CN107601652A (en) * | 2017-09-28 | 2018-01-19 | 江苏大湖环境工程有限公司 | One kind layering bio-trickling case |
| CN108483629A (en) * | 2018-05-29 | 2018-09-04 | 重庆理工大学 | Drip filter formula biomembrane reaction tower |
| CN108483629B (en) * | 2018-05-29 | 2023-07-07 | 重庆理工大学 | Drip filtration type biomembrane reaction tower |
| CN109455817A (en) * | 2018-12-25 | 2019-03-12 | 江西省科学院 | A kind of layering jet aeration tower biological denitrogenation dephosphorizing reactor |
| CN109455817B (en) * | 2018-12-25 | 2019-07-19 | 江西省科学院 | A kind of layering jet aeration tower biological denitrogenation dephosphorizing reactor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |
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| CX01 | Expiry of patent term |