CN1587101A - Biological filter tower for sewage deep treatment - Google Patents
Biological filter tower for sewage deep treatment Download PDFInfo
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- CN1587101A CN1587101A CNA2004100665800A CN200410066580A CN1587101A CN 1587101 A CN1587101 A CN 1587101A CN A2004100665800 A CNA2004100665800 A CN A2004100665800A CN 200410066580 A CN200410066580 A CN 200410066580A CN 1587101 A CN1587101 A CN 1587101A
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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
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Abstract
The biological filter tower for deep sewage treatment consists of relatively independent sewage treating units with different treating targets. In the sewage flowing direction of sewage pre-treated in the anaerobic tank, there are BOD degrading filter tower, ammonia nitrogen adsorbing nitrification filter tower, the first anaerobic tank, the second anaerobic tank, soil adsorbing filter tower, and reinforcing phosphate adsorbing filter tower. There are water distributor connected to the water inlet pipe in the top of the BOD degrading filter tower and water outlet pipe connected to the bottom of the reinforcing phosphate adsorbing filter tower. The present invention has deep sewage treating capacity.
Description
Technical field
The present invention relates to a kind of biological filter tower for sewage deep treatment, relating in particular to a kind of multiple function of denitrogenation dephosphorizing that collects is the biological filter tower for sewage deep treatment of one, be applicable to the advanced treatment and the reuse of rural area, market town, small city isodispersity sewage, belong to the environmental engineering technical field of sewage.
Background technology
The present water pollution condition of China is very serious, and basin water quality such as Taihu Lake, Dian Chi, Chaohu are eutrophication, the time blue-green algae outburst arranged.In water pollution, sanitary sewage has become primary pollution source, and as in Basin of Huaihe River, sanitary sewage occupies more than 60% of source of pollution.
Activated sludge process is mostly adopted in the sanitary sewage disposal in China city at present, yet it is huge to set up the Infrastructure of active sludge sewage work, supporting pipe network expense and the required fund of operational and administrative expenses, adopts this method share of disposing of sewage limited with regard to the present economic conditions of China.Account for most small city, market town, rural area at China's population, the processing rate of sanitary sewage is extremely low, and it is more inadvisable to apply mechanically the traditional cities sewage water treatment method in these areas.Thereby exploitation be fit to China's national situation have good treatment effect, processing cost low, be convenient to safeguard towards the small city, the integrated treatment unit of market town, rural area isodispersity sewage is to solve the more desirable direction of China's water damage ratio.
Biological filtering tower combined working is as a kind of traditional biomembrance process waste disposal plant, and applicating history is long, is convenient to install and use and safeguard, processing cost is lower.Yet the traditional biological filter tower utilizes microbial film to remove BOD (biochemical oxygen demand (BOD)) and finishes the nitrated of ammonia nitrogen, does not generally relate to the removal of the denitrification of nitric nitrogen and phosphorus, germ, the advanced treatment poor performance.Thereby keep how that to improve its advanced treatment performance in the biological filtering tower combined working advantage be that people pay close attention to.
Publication number is the ammonia nitrogen removal ability that the Chinese patent of CN1369440A is considered intensifying device, provides a kind of utilization to have the BAF of the zeolite of ammonia nitrogen absorption characteristic as filtrate.Yet this method is only considered the removal effect of ammonia nitrogen, the denitrification denitrogenation of ammonia nitrogen after nitrated but not have the way that solves, thereby the denitrogenation of device is limited in one's ability, and the while, this device did not have good effect to sewage dephosphorization yet.
The double-layer filter material aerating biological filter that publication number provides for the Chinese patent of CN1401592A, consider the characteristic of sewage disposal, adopt different filtrates to be designed to have decarburization district and nitrification zone two-layer equation filter tank, yet do not consider the advanced treatment effect of denitrogenation dephosphorizing equally.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of biological filter tower for sewage deep treatment is provided, possesses the multiple function of denitrogenation dephosphorizing advanced treatment of wastewater simultaneously, has good wastewater treatment efficiency, its construction running cost is cheap relatively, management maintenance is simple and easy relatively, is applicable to the advanced treatment and the reuse of rural area, market town, small city isodispersity sewage.
For realizing this purpose, biological filter tower for sewage deep treatment of the present invention is formed by the relatively independent sewage disposal unit combination with different decontamination targets, according to the effluent stream of access to plant after the anaerobic pond pre-treatment to, each processing unit of process is respectively BOD (biochemical oxygen demand (BOD)) degraded filter tower, the nitrated filter tower of ammonia nitrogen absorption, one-level anaerobism groove, secondary anaerobic groove, adsorption by soil filter tower, phosphor intensified absorption filter tower successively.The top of BOD degraded filter tower is provided with water-distributing device and connects water inlet pipe, and the bottom of phosphor intensified absorption filter tower is communicated with the device rising pipe, and the filler in the filter towers at different levels adopts grid to support, and separates the formation hollow space with pillar between the filter towers at different levels.Reload inspection port easy access and conversion materials more all are set on the filter towers at different levels.
Concrete structure of the present invention is: biological filter tower for sewage deep treatment is combined successively in order by each relatively independent sewage disposal unit, is followed successively by BOD degraded filter tower, the nitrated filter tower of ammonia nitrogen absorption, one-level anaerobism groove, secondary anaerobic groove, adsorption by soil filter tower and phosphor intensified absorption filter tower respectively.The top of the BOD degraded filter tower of the superiors is provided with water-distributing device and connects water inlet pipe, and fillers such as plastics, gravel, pottery, glass are placed in the inside of BOD degraded filter tower, are supported by grid.BOD degraded filter tower and between the nitrated filter tower of the ammonia nitrogen absorption of its underpart, separate the formation hollow space with pillar.Ammonia nitrogen absorption filler such as zeolite, vermiculite, silica gel etc. are housed in the nitrated filter tower of ammonia nitrogen absorption, can be wherein one or more, and the grille network by the filter tower below supports filler equally.The nitrated filter tower of ammonia nitrogen absorption directly communicates with the one-level anaerobism groove that installs the bottom by the doline anaerobism groove water feed apparatus of its below, and the filler such as the bulk filtrates such as gravel, pottery that can prevent the bulk stopped up are housed in the one-level anaerobism groove.One-level anaerobism trench bottom sealing is waterproof, and and the secondary anaerobic groove on its top between separate with grille network.The filler of secondary anaerobic groove inside can be tiny fillers such as sand, gac, its top exit is arranged in the soil of adsorption by soil filter tower, the adsorption by soil filter tower above the secondary anaerobic groove and surround simultaneously the secondary anaerobic groove around, the modified soil of the interpolation phosphorus sorbing material that the spy joins is equipped with in adsorption by soil filter tower inside, and the phosphorus sorbing material of interpolation comprises flyash, steel-making redness of the skin or complexion steel mud or activated alumina.Adsorption by soil filter tower below has grille network to support soil, and has pillar that the phosphor intensified absorption filter tower of adsorption by soil filter tower and adsorption by soil filter tower below is separated.Phosphor intensified absorption filter tower be positioned at device bottom, one-level anaerobism groove around, the bottom of phosphor intensified absorption filter tower with the device rising pipe be communicated with.Phosphor intensified absorption filter tower inner stuffing is made up of the sponge iron of the natural mineral shale that possesses the phosphorus adsorptive power, trade waste slag, synthetic, in the activated alumina one or more.The inspection port that reloads that filter tower is all arranged on the filter towers at different levels.
Place the biomembranous filler that is used to grow in the BOD degraded filter tower of the present invention, most of organism was degraded after sewage entered BOD degraded filter tower, and the part ammonia nitrogen in the sewage is converted into nitric nitrogen herein, and the sewage after the processing enters the nitrated filter tower of ammonia nitrogen absorption with the form of dripping filter.
Place filler in the nitrated filter tower of ammonia nitrogen absorption of the present invention with ammonia nitrogen absorption function, after sewage enters this one-level filter tower, the part ammonia nitrogen is nitrated by microbial film under the good situation of reoxygenation in the water, in addition because filler has the ammonia nitrogen absorption characteristic, slowly degraded is nitrated by microbial film under the good situation of alternation of wetting and drying reoxygenation after by filling adsorption for the ammonia nitrogen that has little time to degrade, and the nitrated ammonia nitrogen of filling adsorption that makes discharges, filler obtains regeneration, this characteristic also makes this device possess certain anti-ammonia nitrogen impact capacity simultaneously, guarantees the stable of effluent characteristics.The treat effluent of the nitrated filter tower of ammonia nitrogen absorption is collected the bottom that enters one-level anaerobism groove by anaerobism groove water inlet pipe.
Place the filler that possesses certain particle diameter in the one-level anaerobism groove of the present invention, introduce in the one-level anaerobism groove by the sewage behind anaerobism groove water inlet pipe (water collection pipe that goes out that serves as the nitrated tower of ammonia nitrogen absorption simultaneously) the nitrated tower of the ammonia nitrogen absorption of will flowing through simultaneously, the microbial film that remaining organism and preceding two-stage filter tower come off in the sewage enters the denitrification of the nitric nitrogen of one-level anaerobism groove acidifying liquefaction and generation part then, so just significantly reduced the sludge quantity that produces when BOD degraded filter tower and the nitrated filter tower of ammonia nitrogen absorption are disposed of sewage based on the microbial film that comes off, and the carbon source that mud is used as denitrification, the treatment process that is different from traditional filter tower, it is to stop up in order to prevent that one-level anaerobism groove requires filler to possess certain particle diameter, and sewage form with upwelling in one-level anaerobism groove enters in the secondary anaerobic groove.
Place tiny filler in the secondary anaerobic groove of the present invention, sewage carries out denitrification in this one-level filter pocket, and tiny organic suspension particle further is trapped acidifying liquefaction, sewage slowly enters in the soil of adsorption by soil filter tower with the form of upwelling, and under the effect of soil capillary force distributed flow through the adsorption by soil filter tower.
Place spy in the adsorption by soil filter tower of the present invention and join soil with certain water-permeable, effluent stream is when soil, phosphorus is removed by most of under the materialization of soil, chemistry, physical action, the harmful germ that contains in most of sewage under the soil colloid effect of electronegative property simultaneously is adsorbed removal, and adsorption by soil filter tower treat effluent enters in the phosphor intensified absorption filter tower with the form of dripping filter.
The filler of placing in the phosphor intensified absorption filter tower of the present invention is the filler that possesses strong phosphorus adsorptive power, when effluent stream during through this filter tower under the effect at phosphor intensified adsorption stuffing further dephosphorization reach the purpose of advanced treatment.The water outlet of this grade filter tower is collected the discharger reuse by going out water collection pipe.
The present invention is provided with the inspection port that reloads of filter tower on filter towers at different levels, can overhaul or change operation from the inspection port that respectively reloads when fault such as obstructions occurring when system or when needing the replacing filler.
The present invention keep the biological filtering tower combined working reoxygenation good, increased anaerobism groove, adsorption by soil filter tower and phosphor intensified absorption filter tower when removing nitrated functional, the relative cheap advantage of capital construction running cost of BOD and ammonia nitrogen, synergy in order superposes again on the relatively independent basis of each Elementary Function, make device possess denitrification denitrogenation, dephosphorization ability and good advantages such as the germ ability of removing, strengthened the treatment effect of sewage deep denitrogenation dephosphorizing.Each sewage disposal unit unique construction relatively independent and being combined into one has made things convenient for design, installation, maintenance and operational management among the present invention, can regulate the quantity of component units according to operating requirement, the filtrate of difference in functionality can be changed on demand at any time in the each processing unit, part filtrate such as natural zeolite can regenerations when removal effect descends, soil filtrate and some phosphorus sorbing material can be used as greening after saturated and recycle etc. with soil reaching phosphorus absorption, thereby have saved running cost.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a side-looking structural representation of the present invention.
Among Fig. 1, Fig. 2,1 is water inlet pipe, and 2 is water-distributing device, 3 are BOD degraded filter tower, and 4 is grille network, and 5 is the nitrated filter tower of ammonia nitrogen absorption, 6 is pillar, 7 is anaerobism groove water feed apparatus, and 8 is the adsorption by soil filter tower, and 9 is the secondary anaerobic groove, 10 is phosphor intensified absorption filter tower, 11 is one-level anaerobism groove, and 12 are the filter tower inspection port that reloads, and 13 for going out water collection pipe.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is further described.
Biological filter tower for sewage deep treatment structure of the present invention as shown in Figure 1 and Figure 2, combine in order successively by each relatively independent sewage disposal unit, be followed successively by BOD degraded filter tower 3, the nitrated filter tower 5 of ammonia nitrogen absorption, one-level anaerobism groove 11, secondary anaerobic groove 9, adsorption by soil filter tower 8, phosphor intensified absorption filter tower 10 respectively.The top of the BOD degraded filter tower 3 of the superiors is provided with water-distributing device 2 and connects water inlet pipe 1, fillers such as plastics, gravel, pottery, glass are placed in the inside of BOD degraded filter tower 3, supported by grid 4, grille network 4 can be made the reticulation of certain perforate size by plastics, metal, fabric etc.BOD degraded filter tower 3 and between the nitrated filter tower 5 of the ammonia nitrogen absorption of its underpart, separate the formation hollow space with pillar 6.Ammonia nitrogen absorption filler such as zeolite, vermiculite, silica gel etc. are housed in the nitrated filter tower 5 of ammonia nitrogen absorption, and the grille network 4 by the filter tower below supports filler equally.The nitrated filter tower of ammonia nitrogen absorption 5 directly communicates with the one-level anaerobism groove 11 that installs the bottom by the doline anaerobism groove water feed apparatus 7 of its below, and the filler such as the bulk filtrates such as gravel, pottery that can prevent the bulk stopped up are housed in the one-level anaerobism groove 11.One-level anaerobism groove 11 closed bottoms are waterproof, and and the secondary anaerobic groove 9 on its top between adopt grille network 4 to separate.The filler of secondary anaerobic groove 9 inside can be tiny fillers such as sand, gac, its top exit is arranged in the soil of adsorption by soil filter tower 8, adsorption by soil filter tower 8 above the secondary anaerobic groove 9 and surround simultaneously secondary anaerobic groove 9 around, the modified soil that is added with the phosphorus sorbing material that the spy joins is equipped with in adsorption by soil filter tower 8 inside, adsorption by soil filter tower 8 belows have grille network 4 to support soil, and have pillar 6 that the phosphor intensified absorption filter tower 10 of adsorption by soil filter tower 8 and adsorption by soil filter tower 8 belows is separated.Phosphor intensified absorption filter tower 10 be positioned at device bottom, one-level anaerobism groove 11 around, the bottom of phosphor intensified absorption filter tower 10 with the device rising pipe 13 be communicated with.The inspection port 12 that reloads that filter tower is all arranged on the filter towers at different levels.
Extract or utilize access to plant water inlet pipe 1 under the flow by gravity effect by sump pump after the pre-treatment of sanitary sewage process septic tank, then by entering BOD degraded filter tower 3 to drip the filter form behind water-distributing device 2 uniform distribution, sewage enters in the nitrated filter tower 5 of ammonia nitrogen absorption with the form of water droplet drippage after through the processing of BOD filter tower 3, is collected by the anaerobism groove water feed apparatus 7 of filter tower 5 belows through the nitrated filter tower processing of ammonia nitrogen absorption back and enters one-level anaerobism groove 11.Sewage enters secondary anaerobic groove 9 with the upwelling form through grille network 4 stop certain hour in the one-level anaerobism after, sewage is further denitrification in the secondary anaerobic groove, under the effect of soil capillary power, enter in the adsorption by soil filter tower 8 after then rising to certain altitude, by the effect solid further separation of realization water down of soil capillary force.Sewage enters in the phosphor intensified absorption filter tower 10 with the form of dripping filter through the effect of adsorption by soil filter tower 8 again, enters discharge system in system's rising pipe 13 after the processing through the phosphorus adsorption stuffing again.
The present invention is provided with the inspection port 12 that reloads of filter tower on filter towers at different levels, can overhaul or change operation from the inspection port 12 that respectively reloads when fault such as obstructions occurring when system or when needing the replacing filler.The space of all adopting pillar 6 to separate between the filter towers at different levels to form hollow is in order to reoxygenation, and the enclosure material of filter towers at different levels and anaerobism groove can be selected metal, plastics, glass reinforced plastic, concrete etc. for use.Filter towers at different levels are relatively independent, are convenient to installing/dismounting.
Enforcement of the present invention can further specify by the following specific embodiments, but is not limited to this embodiment.
Sanitary sewage with No. one building in the Minhang District residential quarters, Shanghai City is a process object, amount to population 58 people in No. one building, day sewage generating capacity is about 12 tons, select No. one green lawn before the building placement ground as device, the device height is 3m, long and wide is 1.5m * 1.5m, wherein BOD degraded filter tower 3 and all high 0.5m of the nitrated filter tower 5 of ammonia nitrogen absorption, cylindric one-level anaerobism groove 11 high 0.6m, diameter is 1m, cylindric secondary anaerobic groove 9 high 1.2m, diameter is 1m, adsorption by soil filter tower 8 high 1.5m, phosphor intensified absorption filter tower 10 high 0.3m, the ventilation opening height that is made of pillar 6 and grille network 4 between each filter tower is 5cm, more than all filter towers and anaerobism groove make by concrete.System's water inlet pipe 1, anaerobism groove water inlet pipe 7 and system's rising pipe 13 are the pvc pipe of diameter 10cm, each grille network 4 is made by stainless steel, placing diameter in the BOD degraded filter tower 3 is 3cm～5cm expanded perlite, placing diameter in the nitrated filter tower 5 of ammonia nitrogen absorption is the natural zeolite of 3～5cm, placing diameter in the one-level anaerobism groove 11 is the gravel of 3～5cm, place sand in the secondary anaerobic groove 9, place in the adsorption by soil filter tower 8 and pick up from local greening with native, the filler that phosphor intensified absorption filter tower 10 adopts is that the diameter with strong suction phosphorus ability is the natural shale of 3～5cm, sewage advances after the anaerobic pond pre-treatment by sump pump by operation 1.5 hours, stop 0.5 hour, day flooding quantity is that 12 tons mode is intake, through 3 months operation, the COD of device water inlet, NH
4 +-N, TN, TP concentration is average out to 125.4mg/L respectively, 18.7mg/L, 37.6mg/L, 10.1mg/L the concentration of water outlet correspondence is respectively 10.1mg/L after system handles, 0.7mg/L, 3.5mg/L, 0.1mg/L clearance is respectively 91.9%, 96.2%, 90.7%, 99.0%, " miscellaneous domestic water quality standard " that treat effluent satisfies promulgated by the ministries or commissions of the Central Government of nation-building (CJ25.1-89), through can reuse behind the chlorination.
Claims (7)
1, a kind of biological filter tower for sewage deep treatment, it is characterized in that by biochemical oxygen demand (BOD) BOD degraded filter tower (3), the nitrated filter tower of ammonia nitrogen absorption (5), one-level anaerobism groove (11), secondary anaerobic groove (9), adsorption by soil filter tower (8), phosphor intensified absorption filter tower (10) combines successively in order, the top of the BOD degraded filter tower (3) of the superiors is provided with water-distributing device (2) and connects water inlet pipe (1), BOD degraded filter tower (3) bottom is the nitrated filter tower of ammonia nitrogen absorption (5), the nitrated filter tower of ammonia nitrogen absorption (5) communicates with the one-level anaerobism groove (11) of device bottom by the anaerobism groove water feed apparatus (7) of its below, the top of one-level anaerobism groove (11) is secondary anaerobic groove (9), secondary anaerobic groove (9) top exit is arranged in the soil of adsorption by soil filter tower (8), adsorption by soil filter tower (8) is simultaneously around secondary anaerobic groove (9), the phosphor intensified absorption filter tower (10) of adsorption by soil filter tower (8) below be positioned at one-level anaerobism groove (11) around, the bottom of phosphor intensified absorption filter tower (10) is communicated with device rising pipe (13), filler in the filter towers at different levels adopts grid (4) to support, separate the formation hollow space with pillar (6) between the filter towers at different levels, the inspection port that reloads (12) all is set on the filter towers at different levels.
2, the biological filter tower for sewage deep treatment of claim 1 is characterized in that filler in the described BOD degraded filter tower (3) is one or more in plastics, gravel, pottery, the glass.
3, the biological filter tower for sewage deep treatment of claim 1 is characterized in that filler in the nitrated filter tower of described ammonia nitrogen absorption (5) is one or more in zeolite, vermiculite, the silica gel.
4, the biological filter tower for sewage deep treatment of claim 1 is characterized in that the filler in the described one-level anaerobism groove (11) is the gravel or the pottery of bulk.
5, the biological filter tower for sewage deep treatment of claim 1 is characterized in that the inner filler of described secondary anaerobic groove (9) is sand or gac.
6, the biological filter tower for sewage deep treatment of claim 1 is characterized in that described adsorption by soil filter tower (8) inside is equipped with the modified soil that adds phosphorus sorbing material flyash, steel-making redness of the skin or complexion steel mud or activated alumina.
7, the biological filter tower for sewage deep treatment of claim 1 is characterized in that described phosphor intensified absorption filter tower (10) inner stuffing is made up of the sponge iron of the natural mineral shale that possesses the phosphorus adsorptive power, trade waste slag, synthetic, in the activated alumina one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100665800A CN1251976C (en) | 2004-09-23 | 2004-09-23 | Biological filter tower for sewage deep treatment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100665800A CN1251976C (en) | 2004-09-23 | 2004-09-23 | Biological filter tower for sewage deep treatment |
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| Publication Number | Publication Date |
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| CN1587101A true CN1587101A (en) | 2005-03-02 |
| CN1251976C CN1251976C (en) | 2006-04-19 |
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| CNB2004100665800A Expired - Fee Related CN1251976C (en) | 2004-09-23 | 2004-09-23 | Biological filter tower for sewage deep treatment |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921044A (en) * | 2010-08-11 | 2010-12-22 | 环境保护部南京环境科学研究所 | Two-stage anaerobic-tower type filter chamber livestock/poultry wastewater treatment system and treatment process |
| CN102390879A (en) * | 2011-10-17 | 2012-03-28 | 南京大学 | Method for simultaneously and selectively removing nitrate and phosphate from secondary biochemical effluent |
| CN103172222A (en) * | 2013-03-27 | 2013-06-26 | 彭称根 | Industrial sewage treater |
| CN105502711A (en) * | 2015-11-30 | 2016-04-20 | 綦江县狮子桥供水有限公司 | Composite adsorbed water treatment equipment |
| CN105502712A (en) * | 2015-11-30 | 2016-04-20 | 綦江县狮子桥供水有限公司 | Waterworks filtration and adsorption device |
| CN107162172A (en) * | 2017-05-24 | 2017-09-15 | 中山市和智电子科技有限公司 | A kind of osmosis system |
| CN109179909A (en) * | 2018-10-30 | 2019-01-11 | 华北水利水电大学 | A kind of integrated sewage treating apparatus and processing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100452966C (en) * | 2006-11-20 | 2009-01-21 | 哈尔滨工业大学 | Nitrifying water treatment device for aquaria |
-
2004
- 2004-09-23 CN CNB2004100665800A patent/CN1251976C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921044A (en) * | 2010-08-11 | 2010-12-22 | 环境保护部南京环境科学研究所 | Two-stage anaerobic-tower type filter chamber livestock/poultry wastewater treatment system and treatment process |
| CN101921044B (en) * | 2010-08-11 | 2012-10-24 | 环境保护部南京环境科学研究所 | Two-stage anaerobic-tower type filter chamber livestock/poultry wastewater treatment system and treatment process |
| CN102390879A (en) * | 2011-10-17 | 2012-03-28 | 南京大学 | Method for simultaneously and selectively removing nitrate and phosphate from secondary biochemical effluent |
| CN102390879B (en) * | 2011-10-17 | 2013-10-30 | 南京大学 | Method for simultaneously and selectively removing nitrate and phosphate from secondary biochemical effluent |
| CN103172222A (en) * | 2013-03-27 | 2013-06-26 | 彭称根 | Industrial sewage treater |
| CN105502711A (en) * | 2015-11-30 | 2016-04-20 | 綦江县狮子桥供水有限公司 | Composite adsorbed water treatment equipment |
| CN105502712A (en) * | 2015-11-30 | 2016-04-20 | 綦江县狮子桥供水有限公司 | Waterworks filtration and adsorption device |
| CN107162172A (en) * | 2017-05-24 | 2017-09-15 | 中山市和智电子科技有限公司 | A kind of osmosis system |
| CN109179909A (en) * | 2018-10-30 | 2019-01-11 | 华北水利水电大学 | A kind of integrated sewage treating apparatus and processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1251976C (en) | 2006-04-19 |
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