CN103979749A - Treatment device and method for removing heavy metals out of sewage - Google Patents
Treatment device and method for removing heavy metals out of sewage Download PDFInfo
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- CN103979749A CN103979749A CN201410248353.3A CN201410248353A CN103979749A CN 103979749 A CN103979749 A CN 103979749A CN 201410248353 A CN201410248353 A CN 201410248353A CN 103979749 A CN103979749 A CN 103979749A
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Abstract
The invention provides a treatment device and method for removing heavy metals out of sewage. The treatment device comprises a tank body, wherein a water inlet pipe is connected to the bottom of the tank body, a water outlet pipe is connected to the upper end of the tank body, a sandstone initial filter layer, a microbial adsorption layer, filter cloth and a granular activated carbon adsorption layer are sequentially arranged in the tank body from bottom to top, and the microbial adsorption layer is provided with spheres of which the surfaces are attached with microbes. By the treatment device and the treatment method, the disadvantages of the traditional metal ion removal methods that the cost is high, the operation is complicated, low-concentration wastewater is difficult to treat are overcome, and treated water can reach reuse standards by using a microbial treatment manner and adopting a multi-stage filtration and adsorption manner; meanwhile, potential heavy metal resources are recycled.
Description
Technical field
The present invention relates to a kind for the treatment of unit and treatment process thereof of removing heavy metal in sewage.
Background technology
Along with increasing rapidly of socioeconomic fast development and urban population, urban wastewater discharge increases day by day.Municipal effluent becomes the important sources of environmental pollution.In municipal effluent, contain the pollutant components such as a large amount of COD, NH3-N, heavy metal.Heavy metal containing sewage can produce a large amount of harm to HUMAN HEALTH and physical environment.Heavy metal contamination has become one of problem the most serious in current environmental pollution.The method that tradition is removed metal ion has: chemical precipitation method, chemistry redox method, active carbon adsorption, ion exchange method, solvent extration, Physical, membrane separation process etc.These methods are effectively under certain condition, but have that cost is high, complicated operation, are difficult to low concentration wastewater the shortcoming such as to process.
Biosorption process is a kind of newer wastewater processing technology, is specially adapted to process large volume low concentration heavy metal water, has that less investment, running cost are low, high adsorption rate, highly selective, does not produce the advantages such as secondary pollution.Now found the potential biological adsorption material with very high metal adsorption ability of part, as seaweeds, bacterium class, Mycophyta, the discarded biological mushroom of yeast class and fermentation industry foodstuffs industry.S. cervisiae is widely used in food and drink industry, and it is a kind of solid waste, is also the biological adsorption agent with practical potentiality simultaneously, can be used as the ideal material of research the Heavy Metals Bio-adsorption mechanism.
Summary of the invention
In order to realize the advanced treatment of sewage and to overcome the deficiency that tradition is removed metal ion method, the present invention aims to provide a kind of method and apparatus of processing large volume low concentration heavy metal water, can effectively reduce heavy metal concentration, improve effluent quality, make to process water and can reach reuse standard; Potential heavy metal resources is reclaimed simultaneously.
Specific embodiment of the invention scheme is: a kind for the treatment of unit of removing heavy metal in sewage; it is characterized in that; comprise a tank body; described tank base is connected with water inlet pipe; tank body upper end is connected with rising pipe; in described tank body, be provided with successively from the bottom to top sandstone first filter layer, microorganism adsorption layer, filter cloth and granulated active carbon adsorption layer, described microorganism adsorption layer is provided with the spheroid that surface attachment has microorganism.
Further, described ball material is polyvinyl chloride or polycarbonate.
Further, described filter cloth thickness is 5～10cm.
The second embodiment of the present invention is: a kind for the treatment of process of removing heavy metal in sewage, comprise a kind for the treatment of unit of removing heavy metal in sewage as claimed in claim 1, and it is characterized in that comprising the following steps:
(1) select yeast to carry out biological device absorption bacterium, with alkalescence or weak alkaline aqueous solution, yeast is carried out to pre-treatment, yeast after pre-treatment is extremely neutral with deionized water wash through ebuillition of heated, be dried, grind;
(2) yeast step 1 being formed is attached on plastic pellet, and the plastic pellet that is attached with microorganism is invested in device biological adsorption layer;
(3) open the treatment unit work that water inlet pipe makes heavy metal.
Compared with prior art, the present invention has following beneficial effect: the present invention has overcome that traditional removal metal ion method exists that cost is high, complicated operation, be difficult to low concentration wastewater the shortcoming such as to process, by spheroid carrier, realize microbiological treatment mode, the mode of compatible cascade filtration and absorption, make to process water and can reach reuse standard, potential heavy metal resources is reclaimed simultaneously.
The present invention has the following advantages:
One) compact construction, floor space is little;
Two) biological adsorption material is industrial waste thalline, less investment, and cost is low;
Three) adopt reflux type water outlet, make the bead of attached microbial be suspended state, enlarge active surface;
Four) adsorb saturated sorbing material after desorption and regeneration, can continue to use, the heavy metal ion in stripping liquid can be recycled after treatment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
As shown in Figure 1; as shown in drawings; the present invention is the treatment unit that a kind of flow lifting type is removed heavy metal in sewage; mainly comprise a tank body; described tank base is connected with water inlet pipe; tank body upper end is connected with rising pipe, is provided with successively from the bottom to top sandstone first filter layer 1, microorganism adsorption layer 2, filter cloth 3 and granulated active carbon adsorption layer 4 in described tank body, and described microorganism adsorption layer is provided with the spheroid that surface attachment has microorganism.
Through grid, the first sanitary sewage after heavy and Air Exposure, by water-in, from bottom, enter treatment unit, first through filling the first filter layer 1 of quartz sand, filter, except the suspended particulate in anhydrating and active sludge etc.Enter again microorganism adsorption layer 2, by the biological adsorption material adhering on bead, heavy metal ion is carried out to adsorption treatment, remove the toxic heavy metal (Pb, Hg, Cu, Zn, Cd, Co etc.) in multiple sewage.The biological adsorption material that has adsorbed heavy metal is held back by filter cloth 3; further hold back other particulate matter in sewage; sewage after filter cloth 3 is held back enters granulated active carbon adsorption layer 4 again; for adsorbing, sewage is difficult to for microorganism or general oxidation style institute oxygenolysis the granulated active carbon of this layer, as phenol, benzene, oil and products thereof, sterilant, washing composition, synthetic dyestuff, aminated compounds and many artificial synthetic organic materials.
Adopt cascade filtration and absorption, utilize the feature that microorganism adsorption ability is strong, using the Ideal adsorption material of microorganism as heavy metal ion; Utilize the crown_interception of quartz sand and filter cloth, guarantee that absorption reaction carries out smoothly; Utilize the further adsorption of granulated active carbon to difficult degradation pollutent, make sewage reach advanced treatment effect.Adopt industrial waste thalline S. cervisiae as biological adsorption agent, realize utilization of waste material, reduce costs.
The present invention be take plastic pellet as carrier, adheres to a large amount of microorganisms on plastic pellet, is filled in adsorption layer.Bead is spherical or polyhedron shape, to obtain good hydraulics; Material selection polyvinyl chloride (PVC) or polycarbonate (PC), make the bead can be in suspended state in upward flow reactor.
The present invention also provides a kind for the treatment of process of take heavy metal in the removal sewage that yeast is biological adsorption bacterial classification, comprises the following steps:
(1) select yeast to carry out biological device absorption bacterium, with alkalescence or weak alkaline aqueous solution, yeast is carried out to pre-treatment, yeast after pre-treatment is extremely neutral with deionized water wash through ebuillition of heated, be dried, grind;
(2) yeast step 1 being formed is attached on plastic pellet, and the plastic pellet that is attached with microorganism is invested in device biological adsorption layer;
(3) open the treatment unit work that water inlet pipe makes heavy metal.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. a treatment unit of removing heavy metal in sewage; it is characterized in that; comprise a tank body; described tank base is connected with water inlet pipe; tank body upper end is connected with rising pipe; in described tank body, be provided with successively from the bottom to top sandstone first filter layer, microorganism adsorption layer, filter cloth and granulated active carbon adsorption layer, described microorganism adsorption layer is provided with the spheroid that surface attachment has microorganism.
2. a kind for the treatment of unit of removing heavy metal in sewage according to claim 1, described ball material is polyvinyl chloride or polycarbonate.
3. a kind for the treatment of unit of removing heavy metal in sewage according to claim 1, described filter cloth thickness is 5～10cm.
4. remove a treatment process for heavy metal in sewage, comprise a kind for the treatment of unit of removing heavy metal in sewage as claimed in claim 1, it is characterized in that comprising the following steps:
(1) select yeast to carry out biological device absorption bacterium, with alkalescence or weak alkaline aqueous solution, yeast is carried out to pre-treatment, yeast after pre-treatment is extremely neutral with deionized water wash through ebuillition of heated, be dried, grind;
(2) yeast step 1 being formed is attached on plastic pellet, and the plastic pellet that is attached with microorganism is invested in device biological adsorption layer;
(3) open the treatment unit work that water inlet pipe makes heavy metal.
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| CN201410248353.3A CN103979749B (en) | 2014-06-06 | 2014-06-06 | A kind for the treatment of apparatus and processing method thereof of removing heavy metal in sewage |
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| CN201410248353.3A CN103979749B (en) | 2014-06-06 | 2014-06-06 | A kind for the treatment of apparatus and processing method thereof of removing heavy metal in sewage |
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| CN103979749A true CN103979749A (en) | 2014-08-13 |
| CN103979749B CN103979749B (en) | 2016-05-04 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261580A (en) * | 2014-09-23 | 2015-01-07 | 深圳市博儒环境技术有限公司 | Pressure decontaminating water purifying device |
| CN106046354A (en) * | 2016-06-30 | 2016-10-26 | 山东凯盛新材料股份有限公司 | Technique for refining polyetherketoneketone crude product by using ethylenediamine tetra(methylenephosphonic acid) |
| CN106495402A (en) * | 2016-11-25 | 2017-03-15 | 青海七彩花生物科技有限公司 | A kind of biotechnology useless water purifying means of purification and its using method |
| CN108083580A (en) * | 2017-12-28 | 2018-05-29 | 连云港绿润环保科技有限公司 | A kind of method and its adsorbent equipment for removing heavy metal ions in sewage |
| CN108147617A (en) * | 2017-12-28 | 2018-06-12 | 连云港绿润环保科技有限公司 | A kind of sphere stacked goes the method and its adsorbent equipment of heavy metal ion |
| CN108178329A (en) * | 2017-12-28 | 2018-06-19 | 连云港绿润环保科技有限公司 | A kind of chronic trickling formula sewage removes removing heavy metals method and its removal device |
| CN109320020A (en) * | 2018-11-06 | 2019-02-12 | 浙江省海洋水产养殖研究所 | One heavy metal species waste liquid absorption plant |
| CN109679137A (en) * | 2018-12-20 | 2019-04-26 | 树业环保科技股份有限公司 | A kind of the reclaiming system and technique of waste and old polycarbonate |
| CN111533219A (en) * | 2020-05-13 | 2020-08-14 | 徐州康卓化工设备有限公司 | Formula chemical industry sewage treatment plant is inhaled to magnetism |
| CN111892241A (en) * | 2020-07-23 | 2020-11-06 | 广州市金环环保工程有限公司 | Industrial sewage purification method |
| CN113185015A (en) * | 2021-05-14 | 2021-07-30 | 咸阳师范学院 | Method and equipment for treating sewage containing heavy metal ions |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104261580A (en) * | 2014-09-23 | 2015-01-07 | 深圳市博儒环境技术有限公司 | Pressure decontaminating water purifying device |
| CN106046354B (en) * | 2016-06-30 | 2018-11-20 | 山东凯盛新材料股份有限公司 | The technique that polyether ketone ketone crude product is refined with ethylenediamine tetramethylene phosphonic acid |
| CN106046354A (en) * | 2016-06-30 | 2016-10-26 | 山东凯盛新材料股份有限公司 | Technique for refining polyetherketoneketone crude product by using ethylenediamine tetra(methylenephosphonic acid) |
| CN106495402A (en) * | 2016-11-25 | 2017-03-15 | 青海七彩花生物科技有限公司 | A kind of biotechnology useless water purifying means of purification and its using method |
| CN108083580A (en) * | 2017-12-28 | 2018-05-29 | 连云港绿润环保科技有限公司 | A kind of method and its adsorbent equipment for removing heavy metal ions in sewage |
| CN108178329A (en) * | 2017-12-28 | 2018-06-19 | 连云港绿润环保科技有限公司 | A kind of chronic trickling formula sewage removes removing heavy metals method and its removal device |
| CN108147617A (en) * | 2017-12-28 | 2018-06-12 | 连云港绿润环保科技有限公司 | A kind of sphere stacked goes the method and its adsorbent equipment of heavy metal ion |
| CN109320020A (en) * | 2018-11-06 | 2019-02-12 | 浙江省海洋水产养殖研究所 | One heavy metal species waste liquid absorption plant |
| CN109320020B (en) * | 2018-11-06 | 2021-05-28 | 浙江省海洋水产养殖研究所 | Heavy metal waste liquid absorbing device |
| CN109679137A (en) * | 2018-12-20 | 2019-04-26 | 树业环保科技股份有限公司 | A kind of the reclaiming system and technique of waste and old polycarbonate |
| CN111533219A (en) * | 2020-05-13 | 2020-08-14 | 徐州康卓化工设备有限公司 | Formula chemical industry sewage treatment plant is inhaled to magnetism |
| CN111533219B (en) * | 2020-05-13 | 2022-08-23 | 广西晟驰科技有限公司 | Formula chemical industry sewage treatment plant is inhaled to magnetism |
| CN111892241A (en) * | 2020-07-23 | 2020-11-06 | 广州市金环环保工程有限公司 | Industrial sewage purification method |
| CN113185015A (en) * | 2021-05-14 | 2021-07-30 | 咸阳师范学院 | Method and equipment for treating sewage containing heavy metal ions |
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