CN1733618A - Process and apparatus for removing ferromanganese from underground water - Google Patents

Process and apparatus for removing ferromanganese from underground water Download PDF

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Publication number
CN1733618A
CN1733618A CNA2005100281824A CN200510028182A CN1733618A CN 1733618 A CN1733618 A CN 1733618A CN A2005100281824 A CNA2005100281824 A CN A2005100281824A CN 200510028182 A CN200510028182 A CN 200510028182A CN 1733618 A CN1733618 A CN 1733618A
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filtrate
biological
demanganization
underground water
level
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CN1321911C (en
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薛罡
刘振鸿
刘亚男
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Donghua University
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Donghua University
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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 invention provides a technique to remove iron and manganese in groundwater. Wherein, aerating the water with low-intensity spray aeration tower and charging oxygen, filtering with biological substance to remove the impurity. This method is simple and low cost.

Description

A kind of processing method and equipment thereof of removing ferrimanganic in the underground water
Technical field
The present invention relates to a kind of processing method and equipment thereof of removing ferrimanganic in the underground water, relate in particular to a kind of processing method and equipment thereof that adopts the biological uniform filtration of one-level to remove ferrimanganic in the underground water.
Background technology
In the early days of foundation, China lacks the underground water deferrization and demanganization technical experience, the main natural oxidation method that adopts from external introduction.The natural oxidation method comprises the flow process of a series of complexity such as aeration, oxidizing reaction, precipitation, filtration.Underground water after aeration aerating reaction, Fe 2+Be oxidized to Fe 3+And with Fe (OH) 3Form separate out, again by precipitation, filter and to be removed; For demanganization, only depend on aeration to be difficult to phreatic pH is brought up to the higher level of the required pH of natural oxidation demanganization＞9.5, need add alkali (as lime) to improve pH value in the water, make technical process complicated more, further increase investment, working cost and management difficulty.Practice shows that this method is to be not suitable for the limited real national conditions of China's water facilities construction fund.
Contact oxidation method is the new technology of developing nineteen sixties, according to " active filter film " autocatalysis theory, make aeration after water directly feed the filter tank, along with the increase of working time, progressively wrapped up on the filtrate Fe 2+, Mn 2+Oxidation has the irony and the manganese matter active filter film of self-catalysis, and main component is Fe (OH) 3And MnO 2Because the self-catalysis of active filter film has not only solved natural oxidation method flow process complicated problems, and realized demanganization under the condition of pH＞7.5, effectively reduces the lower limit requirement of demanganization pH, has reduced the demanganization difficulty; Simultaneously, contact oxidation method has been save reaction, precipitation link, has reduced construction investment and working cost significantly, is the important breakthrough of underground water deferrization and demanganization technology.Engineering practice for many years shows that the irony active filter film is very effective to the removal of the iron of easy oxidation in the contact oxidation method, but then finds some new problems aspect demanganization.On the one hand, underground water is generally the ferrimanganic coexistence, for getting rid of the interference of the quick oxidation of iron to the manganese oxidation, contact oxidation method adopts one-level aeration, iron removal by filtration in many cases, secondary aeration, the classification removal method of filtering demanganization, technical process is more complicated still, and working cost is also higher; On the other hand, manganese is difficult to oxidation, can not be oxidized to MnO fast in filtering layer 2Form manganese matter active filter film on the filtrate and be attached to, it is longer that the demanganization ability forms the cycle, and because the interference of extraneous factors such as regular back flushing, manganese matter active filter film can not form sometimes at all, the demanganization effect presents very unsure state, and for example all there are the problems referred to above in many cities and towns such as Heilongjiang Province's Shuangcheng, Dedu to some extent by the groundwater treatment factory and the treatment unit of contact oxidation method design and operation.
The situation that is difficult to thoroughly solve underground shipwreck demanganization at routine techniques, China has carried out the theory and the applied research of underground water biological process demanganization new technology in nineteen nineties, foretell Shenyang official Lee respectively, Anshan Da Zhaotai, ground such as development area, Fushun water factory have carried out work place study, and by a large amount of microbiology tests, proved in the filter tank the high-performance bio demanganization effect of manganese oxidation bacterium, some scholars also study biological process in succession from different perspectives both at home and abroad, have obtained some valuable achievements at aspects such as strengthening demanganization effect and reduction engineering cost.The researchdevelopment of biological process has obtained some valuable achievements so far under scholars' continuous effort.But, have the gordian technique of some important engineeringization to still need further perfect in actual applications as a kind of new technology:
(1) research of biological process lasting for years, but engineering practice is less relatively, do not build at present perfect engineering design theory and parameter determination method as yet, aspect engineering practice, still lack the normalized design of a cover, operation adjustment method, when for example manganese oxidation bacterium is inserted filtering layer in the early stage in the establishment of superiority and the firm process, may cause big disturbance and the extraneous operating parameter of destructive such as filtering velocity, back washing strength and time etc. to the filtering layer biophase, present still do not have quantification, a definite control criterion.We can say that this new technology do not walk out laboratory, the through engineering approaches of marching toward at present as yet fully.
(2) engineering implementation method of biofiltration promptly forms the biological filter as how simple inoculation method, is the key problem in technology of realizing biological demanganization.Although the screening of Fe-Mn oxidation bacterium, domestication are succeeded, although adopt the method for laboratory screening domesticated strain inoculation technical feasible, the spawn culture expense is huge, and is infeasible economically.
Technology contents
Technical problem to be solved by this invention is to provide a kind of processing method and equipment thereof of removing ferrimanganic in the underground water, to solve complex process, shortcomings such as technical process is long, expense is high, removing of iron and manganese weak effect in the prior art.
Know-why of the present invention is such:
This technology utilization microorganism is to being difficult to the Mn of oxidation in the underground water 2+Powerful catalysed oxidn, make under the lower condition of DO in the underground water, pH at low intensity aeration, make to contain ferrimanganic underground water and can reach the effect that ferrimanganic is removed simultaneously through the one-level biofiltration.At first underground water is sprayed the aeration tower aeration aerating by low strength, enter the one-level biofiltration then and carry out deferrization and demanganization.For quickening the forming process of superiority in newly-built filtering layer of manganese oxidation bacterium in the one-level biofiltration, the present invention proposes " ripe filtrate transfer methods ", can effectively shorten the filtrate demanganization ripening stage; For improving biofiltration efficient, the present invention proposes " biological uniform filtration new technology ", both adopted homogeneous filtering material to fill filtering layer, to prolong filtration cycle; Cooperate biological uniform filtration technical characterstic, the present invention proposes " the backwash rate new technology is hanged down in biofiltration ", effectively reduce back washing strength, water consumption and energy consumption.
One of purpose of the present invention is to provide a kind of processing method of removing ferrimanganic in the underground water, and this method comprises the steps:
(1) pending underground water carries out aeration aerating at low strength spray aeration tower, and spray density is 5～10m 3/ m 2H;
(2) underground water behind low intensity aeration enters the biological uniform filtration device of one-level and carries out deferrization and demanganization.Wherein preceding 16-20 days starting period filtering velocity is 3～5m/h, and the works better filtering velocity is 6～8m/h after the starting period, and be 35～40h filtration cycle; Manganese oxidation bacterium bacterial classification derives from the ripe filtrate in the good deferrization and demanganization filter tank of operating performance for many years in the filtering layer.
(3) filtration unit carries out the low strength back flushing in filtration cycle end, and back washing strength is 6～9L/sm 2, backwashing time is 5～8min.
The present invention proposes the aeration process standard of quantized biological demanganization: adopt low intensity aeration to make behind the aeration that DO is 2～7mg/L in the underground water, pH is 6.9～7.2, the Physiology and biochemistry character requirement of manganese oxidation bacterium in the follow-up biofiltration can be satisfied, the demand of Fe-Mn oxidation can be satisfied again oxygen.
Another object of the present invention has been to provide the equipment of realizing that above-mentioned processing method is required, this equipment comprises low strength spray aeration tower 3 and the biological uniform filtration device 10 of one-level, wherein low strength spray aeration tower 3 comprises spray perforated pipe 4, latticed frame plate 5,6,7,8 and water collecting basin 9, the biological uniform filtration device 10 of one-level comprises filtrate 11 and header 12, and low strength spray aeration tower 3 is connected by connecting tube 14 with the biological uniform filtration device 10 of one-level.
Wherein the filtrate of filtrate 11 top 200mm be from move for many years and filter tank that deferrization and demanganization is respond well transplant and the ripe filtrate that comes, the bottom is that particle diameter is 1.0～1.2mm, and thickness of filter bed is the homogeneous manganese sand filtering material (the filtrate kind is Mashan, a Guangxi manganese sand) of 1000mm.
The present invention has overcome the shortcoming that causes the depth type filtration performance not give full play to owing to hydraulic classification of conventional heterogeneous body filtrate, filtration cycle is for bringing up to 35～40h, compare to make with traditional heterogeneous body filtrate and prolong filtration cycle about 40%, effectively reduce backwashing water consumption and energy consumption.It is to be dominant bacteria through natural selection for many years and with the Fe-Mn oxidation bacterium that ripe filtrate moves, so can quicken the firm process of Fe-Mn oxidation bacterium superiority in the environment of newly-built filter tank.Adopt this method, the demanganization ripening stage can foreshorten to 20～30 days, and obtains stable water flow quality.
Filtering layer is the environment that manganese oxidation bacterium adheres to, grows, to the disturbance of the biological filtering layer maximum back flushing from filtration cycle end.Biological filtering layer not only will reach the purpose of removing the iron and manganese oxides that filtering layer holds back, but also will guarantee that the filtering layer microorganism is not subjected to bigger damage and destruction mutually when back flushing.Owing to adopted " biological uniform filtration new technology ", biological uniform filtration (manganese sand filtering material) back washing strength can be controlled at 6～9L/sm 2Low scope, the biological process back washing strength has reduced about 40% than contact oxidation method.Under suitable condition of recoil time, biological filtering layer backwashing water consumption reduces about 40%.
Characteristics that this invention has and beneficial effect are:
(1) adopt the low intensity aeration technology to simplify the aeration facility, low strength spray aeration tower adopts four-layer network screen work plate, compare with traditional high strength aeration tower more than eight layers and eight layers, can obtain the dissolved oxygen of the required low concentration of biological demanganization, and can reduce investment outlay and working cost.
(2) adopt the one-level bio-filter technology, can in filtering, one-level realize removing in the ferrimanganic, and do not reduce filtering velocity and water production rate, compare and can save the one-level filtering unit with traditional contact oxidation method (one-level iron removal by filtration, cascade filtration demanganization), reduce investment outlay and working cost aspect have a clear superiority in.
(3) the biofiltration implementation method of " the ripe filtrate transfer methods new technology " of the present invention's proposition is simple to operate, can make filtering layer form good deferrization and demanganization effect in a short time.The inoculation method process complexity of conventional laboratory screening domestication dominant bacteria, the shortcoming that the cycle is long, expense is high have been overcome.
(4) " the backwash rate technology is hanged down in biofiltration " of the present invention's proposition effectively reduces the backwashing water consumption and the energy consumption of filtering layer; The application of homogeneous filtering material in biofiltration simultaneously improved the retaining power of filtering layer, prolonged the cycle of operation, reduced back flushing frequency and operational management difficulty.
(5) combination of above-mentioned various new technologies not only can solve the coexist engineering roadblock of difficult demanganization of the underground water ferrimanganic that perplexs engineering circle for many years, and what is more important has reduced engineering cost significantly, is important supplement theoretical to current biological demanganization and that use.
Description of drawings
Fig. 1 is the sectional view of equipment required for the present invention.
Wherein, 1 is water inlet pipe, and 2 is lift pump, and 3 are low strength spray aeration tower, 4 are the spray perforated pipe, and 5,6,7,8 is latticed frame plate, and 9 is water collecting basin, and 10 is the biological uniform filtration device of one-level, 11 is filtrate, and 12 is header, and 13 is rising pipe, and 14 is connecting tube.
Embodiment
Embodiment 1
The pending ferrimanganic underground water that contains is aspirated and is entered low strength spray aeration tower 3 through water inlet pipe 1 from well by lift pump 2.At first enter aeration tower spray perforated pipe 4, pass through latticed frame plate 5, frame plate 6, frame plate 7, frame plate 8 splashes then from top to bottom respectively.Underground water behind aeration aerating enters filtration unit 10 through water collecting basin 9 and pipe connecting 14, carries out filtration, purification through filtrate 11, and the underground water after the purification is discharged from rising pipe 13 after the header 12 of bottom, filter tank is collected.
Embodiment 2
Xian Xi market town, Bayan County, Heilongjiang Province is the type area that contains ferrimanganic in the underground water source, total iron content is 6-9mg/L in the underground water, total manganese content is 1.5-2.2mg/L, iron manganese content head and shoulders above China's Drinking Water water quality standard set upper limit value: total iron is less than 0.3mg/L, and total manganese is less than 0.1mg/L.Utilize the present invention to propose novel process and set up a cover production equipment in this area's groundwater treatment factory, the processing water yield is 1.2m 3/ h.
The spray density of low strength spray aeration tower is 10m 3/ m 2H, the length and width height is respectively 350mm*350mm*1800mm, and the distance between the frame plate is 200mm, and the residence time of lower sump is 5min, and useful volume is 0.1m 3
Filtration unit is the steel hay tank of circular cross section, diameter 500mm.Hay tank height overall 1800mm, the inner thick high-quality manganese sand homogeneous filtering material of 1200mm of filling, particle diameter 1.0～1.2mm, the filtrate of its middle and upper part 200mm be from move for many years and filter tank that deferrization and demanganization is respond well transplant and the ripe filtrate that comes.The operating parameter of filtering unit is: the operating period, preceding 18 days starting period filtering velocity was 4m/h, works better filtering velocity 6m/h after the starting period; The filtering layer back washing strength is 7L/sm 2, recoil time 8min; Filtration cycle 35h.
Investigate through the practice in 1 year, find the total system operational excellence, the water outlet iron manganese content is stable and all can reach China's Drinking Water water quality standard.

Claims (3)

1. a processing method of removing ferrimanganic in the underground water is characterized in that this method comprises the steps:
(1) pending underground water carries out aeration aerating at low strength spray aeration tower, and spray density is 5～10m 3/ m 2H;
(2) underground water behind low intensity aeration enters the biological uniform filtration device of one-level and carries out deferrization and demanganization; Wherein preceding 16～20 days starting period filtering velocity is 3～5m/h, and the works better filtering velocity is 6～8m/h after the starting period, and be 35～40h filtration cycle; Manganese oxidation bacterium bacterial classification derives from the ripe filtrate in the good deferrization and demanganization filter tank of operating performance for many years in the filtering layer;
(3) filtration unit carries out the low strength back flushing in filtration cycle end, and back washing strength is 6～9L/sm 2, backwashing time is 5～8min.
2. realize the required equipment of the described processing method of claim 1 for one kind, it is characterized in that this equipment comprises low strength spray aeration tower (3) and the biological uniform filtration device (10) of one-level, wherein low strength spray aeration tower (3) comprises spray perforated pipe (4), latticed frame plate (5), (6), (7), (8) and water collecting basin (9), the biological uniform filtration device of one-level (10) comprises filtrate (11) and header (12), and low strength spray aeration tower (3) is connected by connecting tube (14) with the biological uniform filtration device of one-level (10).
3. equipment according to claim 2, the filtrate that it is characterized in that described filtrate (11) top 200mm be from move for many years and filter tank that deferrization and demanganization is respond well transplant and the ripe filtrate that comes, the bottom is that particle diameter is 1.0～1.2mm, and thickness of filter bed is the homogeneous manganese sand filtering material of 1000mm.
CNB2005100281824A 2005-07-27 2005-07-27 Process and apparatus for removing ferromanganese from underground water Expired - Fee Related CN1321911C (en)

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Cited By (15)

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CN101717172B (en) * 2009-11-20 2012-05-23 中国水产科学研究院渔业机械仪器研究所 Method for treating underground seawater used for aquiculture
CN102603080A (en) * 2012-03-23 2012-07-25 北京工业大学 Rapid starting method for high-iron and manganese underground water biological purification filtering layer
CN102627348A (en) * 2012-04-17 2012-08-08 哈尔滨工业大学 Water treatment method for synchronously removing iron, manganese and arsenic in underground water
CN103484401A (en) * 2013-09-04 2014-01-01 浙江工业大学 Aminobacter sp.H1 and application of Aminobacter sp.H1 in manganese oxide ions
CN103553251A (en) * 2013-09-25 2014-02-05 沈阳建筑大学 Method for treating composite polluted underground water under low temperature condition
CN104445829A (en) * 2014-12-15 2015-03-25 东北农业大学 Treating method of biologically and synchronously removing high iron and manganese in underground drinking water under low-temperature condition
CN104556345A (en) * 2013-10-22 2015-04-29 宝山钢铁股份有限公司 Device and method for quickening air oxidation reaction of ferrous ions in acid wastewater
CN106242183A (en) * 2016-08-30 2016-12-21 湖南中大经纬地热开发科技有限公司 Can the underground water deferrization and demanganization device of microorganisms and filter method online
CN106242184A (en) * 2016-08-30 2016-12-21 湖南中大经纬地热开发科技有限公司 Underground water deferrization and demanganization device
CN106365296A (en) * 2016-08-30 2017-02-01 湖南中大经纬地热开发科技有限公司 Microbial iron and manganese removing filter and microbial filtration forming method
CN106365295A (en) * 2016-08-30 2017-02-01 湖南中大经纬地热开发科技有限公司 Iron-and-manganese removing device based on microorganisms and microorganism filtering method
CN107188315A (en) * 2017-07-10 2017-09-22 北京工业大学 A kind of ferrimanganic ammonia biological cleaning filter tank maintaining method of economical and efficient
CN107233884A (en) * 2017-06-05 2017-10-10 云南驰宏锌锗股份有限公司 It is a kind of to be used to be catalyzed ferromagnetism catalyst of ferric iron hydrolytic precipitation and its preparation method and application
CN110723840A (en) * 2019-11-20 2020-01-24 华电水务科技股份有限公司 Method and device for removing iron and manganese in underground water
CN113307430A (en) * 2021-07-12 2021-08-27 冯殿和 Combined multifunctional water treatment system

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CN1011963B (en) * 1988-02-11 1991-03-13 中国市政工程东北设计院市政工程研究所 Technique and installation of removing iron and manganese in ground-water by method of biological filtration basin
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CN101717172B (en) * 2009-11-20 2012-05-23 中国水产科学研究院渔业机械仪器研究所 Method for treating underground seawater used for aquiculture
CN102603080A (en) * 2012-03-23 2012-07-25 北京工业大学 Rapid starting method for high-iron and manganese underground water biological purification filtering layer
CN102603080B (en) * 2012-03-23 2013-07-10 北京工业大学 Rapid starting method for high-iron and manganese underground water biological purification filtering layer
CN102627348A (en) * 2012-04-17 2012-08-08 哈尔滨工业大学 Water treatment method for synchronously removing iron, manganese and arsenic in underground water
CN102627348B (en) * 2012-04-17 2013-10-30 哈尔滨工业大学 Water treatment method for synchronously removing iron, manganese and arsenic in underground water
CN103484401A (en) * 2013-09-04 2014-01-01 浙江工业大学 Aminobacter sp.H1 and application of Aminobacter sp.H1 in manganese oxide ions
CN103484401B (en) * 2013-09-04 2014-12-03 浙江工业大学 Aminobacter sp.H1 and application of Aminobacter sp.H1 in manganese oxide ions
CN103553251A (en) * 2013-09-25 2014-02-05 沈阳建筑大学 Method for treating composite polluted underground water under low temperature condition
CN104556345A (en) * 2013-10-22 2015-04-29 宝山钢铁股份有限公司 Device and method for quickening air oxidation reaction of ferrous ions in acid wastewater
CN104556345B (en) * 2013-10-22 2016-08-17 宝山钢铁股份有限公司 Accelerate the apparatus and method of acid waste water ferrous ions air oxidation reaction
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CN104445829B (en) * 2014-12-15 2015-12-30 东北农业大学 The biological synchronous treatment process removing high-iron and high manganese in underground drinking water of a kind of cold condition
CN106242183A (en) * 2016-08-30 2016-12-21 湖南中大经纬地热开发科技有限公司 Can the underground water deferrization and demanganization device of microorganisms and filter method online
CN106242184A (en) * 2016-08-30 2016-12-21 湖南中大经纬地热开发科技有限公司 Underground water deferrization and demanganization device
CN106365296A (en) * 2016-08-30 2017-02-01 湖南中大经纬地热开发科技有限公司 Microbial iron and manganese removing filter and microbial filtration forming method
CN106365295A (en) * 2016-08-30 2017-02-01 湖南中大经纬地热开发科技有限公司 Iron-and-manganese removing device based on microorganisms and microorganism filtering method
CN106365296B (en) * 2016-08-30 2019-08-02 湖南中大经纬地热开发科技有限公司 Microorganism deferrization and demanganization filter and microbe filter forming method
CN106365295B (en) * 2016-08-30 2019-08-02 湖南中大经纬地热开发科技有限公司 Facility for iron and manganese removal and microbe filter method based on microorganism
CN107233884A (en) * 2017-06-05 2017-10-10 云南驰宏锌锗股份有限公司 It is a kind of to be used to be catalyzed ferromagnetism catalyst of ferric iron hydrolytic precipitation and its preparation method and application
CN107233884B (en) * 2017-06-05 2020-06-30 云南驰宏锌锗股份有限公司 Ferromagnetic catalyst for catalyzing hydrolysis and precipitation of trivalent iron, and preparation method and application thereof
CN107188315A (en) * 2017-07-10 2017-09-22 北京工业大学 A kind of ferrimanganic ammonia biological cleaning filter tank maintaining method of economical and efficient
CN107188315B (en) * 2017-07-10 2020-09-25 北京工业大学 Economic and efficient maintenance method for iron-manganese-ammonia biological purification filter
CN110723840A (en) * 2019-11-20 2020-01-24 华电水务科技股份有限公司 Method and device for removing iron and manganese in underground water
CN113307430A (en) * 2021-07-12 2021-08-27 冯殿和 Combined multifunctional water treatment system

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