CN102452730A - Cascade fine filtering method and device for removing iron and manganese - Google Patents
Cascade fine filtering method and device for removing iron and manganese Download PDFInfo
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- CN102452730A CN102452730A CN2010105200650A CN201010520065A CN102452730A CN 102452730 A CN102452730 A CN 102452730A CN 2010105200650 A CN2010105200650 A CN 2010105200650A CN 201010520065 A CN201010520065 A CN 201010520065A CN 102452730 A CN102452730 A CN 102452730A
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Abstract
The invention discloses a cascade fine filtering method and device for removing iron and manganese. In the method, a multi-stage serial homogeneous filter bed structure filtering form is adopted; a homogeneous structure is kept at each stage of filter layer; different filtering layers and bearing layers are formed in a cascade filtering basin; ordinary suspended matters are filtered out at a first stage; iron and manganese contained in water are filtered out at a second stage; at least more than one cell filtering basin is arranged in a drawer form; the filtering basin is connected with a water feeding tube and a water feeding control valve, and is provided with a water distributing canal; a water outlet tube and a water outlet control valve are arranged below the filtering basin; a back flushing water out tube is connected outside the filtering basin; the filtering layers and the bearing layers are formed in the filtering basin; and a water storage tank is arranged below the filtering basin. The device has low cost, low energy consumption and good outflow water quality; and suspended matters and iron and manganese contained in water are effectively filtered out through cascade filtering.
Description
Technical field
The present invention relates to natural former water and industrial cycle water technology, contain removing of iron and manganese cascade stage fine filtering method and the device thereof in the water treatment purification process under the ferrimanganic condition to groundwater source especially.
Backgroundfield
Underground water is as clear as crystal, and water temperature is low and stable throughout the year, is important drinking water source of people and ideal industry water source through the ages always.The present amount of groundwater mining of China accounts for 30% of National urban total water amount, drink phreatic town dweller and reach more than 100,000,000 people, the U.S. more very, it is main drinking water source with underground water that the population of 40%-50% is arranged approximately.Yet most of underground water all contains excessive iron and manganese, has a strong impact on its use value, must remove.
Traditional filter type adopts the single or multiple lift filtrate vertically to flow to the water outlet form, can't effectively realize the removal to suspended contamination in the water and ferrimanganic simultaneously, therefore needs new filtered version to overcome these problems.
Summary of the invention
The objective of the invention is in order to overcome the defective of prior art, a kind of low cost, less energy consumption, removing of iron and manganese cascade stage fine filtering method and device thereof that effluent quality is good are provided.
One of the present invention's the removing of iron and manganese cascade stage fine filtering method with water treatment is achieved in that this method is to adopt plural serial stage homogeneous filter bed structure filtered version; Every grade of filtering layer keeps homogeneous texture; Be provided with different filter material layers and supporting layer in the tandem filtering basin; The first step is filtered and is removed common suspended substance, and the second stage is filtered and removed contained ferrimanganic in the water.
The present invention's two the removing of iron and manganese cascade stage fine filtering device with water treatment is achieved in that by drawer type above cell filtering basin is set at least; Connect water inlet pipe and water inlet control valve on the filtering basin; And be provided with distributing flue, have rising pipe and outlet water control valve, and external back flushing rising pipe; In be provided with filter material layer, supporting layer, have water tank.
And, be provided with back flushing water inlet aeration in the water tank and share pipe and chemical feed pipe.
And filter material layer can be first step ceramic filter material layer, the second stage manganese sand filtration bed of material.
This filtration unit is compared with traditional filtered version, can reach the effect of removing ferrimanganic in the water, helps arranging in pairs or groups with other treatment process, is prepared into integrated water treatment equipment.
Simultaneously; This filtration unit solves the blockage problem that the conventional quartz sand filtering material occurs between continuous operating period; For subsequent technique lightens the load; Thereby in this filter tank, can reach the effect (tradition) of high-rate fitration with littler thickness of filter bed and higher filtering velocity condition, satisfy the leading indicator requirement of strict national tap water effluent quality, obtain ideal technology and economic benefit.To stream, after current at first pass through the ceramic filter material layer, can get rid of the bigger suspension and the colloidal type impurity substances that contain in the water under the first step adopts, be that ferrimanganic reduction load is removed in the second stage; Current compile and add after NaOH regulates the pH value and carry out abundant aeration in the distributing water room of bottom subsequently, get into second stage manganese sand filter blanket from bottom to top.Upward flow, the Fe in the water are adopted in the second stage
2+, Mn
2+Ion changes into Fe (OH)
3, Mn (OH)
2The back is trapped within the filtering layer and is effectively removed by the principle of the manganese sand filtration bed of material with the contact adsorption and oxidation with sedimental form.This decoration form can make hydraulics good, is evenly distributed.Intermediate transition zone between the first step and the second stage is provided with chemical feed pipe, regulates pH.The backwash system of this multi-level fine filtration unit also has its advantage, can wash separately and does not interfere with each other between level and the level, and the required water loss of every grade of filtrate flushing is all fewer like this, has practiced thrift power consumption water in a large number and has consumed.Back flushing simultaneously and aeration tube share economical with materials.And the impurity holding filth capacity distribution situation that this upward flow water intake mode is brought also more helps filtrate backwash from bottom to top.In addition, when raw water quality is relatively good, can reduce progression, save energy easily.When water inlet iron manganese content during at 4-5mg/L, water outlet can reach the water quality standard that of national regulation.In natural former water and industrial water supply filtration treatment technology, domesticly do not see this kind form.
Description of drawings
Fig. 1 is a removing of iron and manganese cascade stage fine filtering schematic representation of apparatus of the present invention.
Fig. 2 is the side-view of removing of iron and manganese cascade stage fine filtering device of the present invention.
The 1-water inlet pipe, 2-water inlet control valve, 3-distributing flue, 4-ceramic filter material layer; The 5-supporting layer, 6-water tank, 7-natural manganese sand, 8-rising pipe; The 9-outlet water control valve, 10-back flushing water inlet aeration share pipe, and 11-back flushing water inlet aeration share valve, 12-first step back flushing rising pipe; 13-first step back flushing draining control valve, 14-chemical feed pipe, 15-chemical feed pipe valve, 16-filtering basin.
Embodiment
Below in conjunction with accompanying drawing the present invention is further specified, with reference to Fig. 1,2.
Like Fig. 1, shown in 2, a kind of removing of iron and manganese cascade stage fine filtering method, this method is to adopt multi-stage series connection homogeneous filter bed structure filtered version; Every grade of filtering layer keeps homogeneous texture; Every grade of filtering layer keeps homogeneous texture, is provided with different filter material layer (4) and supporting layer (5) in the tandem filtering basin (16), and the first step is filtered and removed common suspended substance; Special contained iron, the manganese in the water of removing is filtered in the second stage, and effluent quality is better.
Described removing of iron and manganese cascade stage fine filtering device comprises from the center water inlet pipe (1) to water inlet control valve (2), distributing flue (3), ceramic filter material layer (4); Supporting layer (5), intermediate transition zone (6), manganese layer of sand (7); Rising pipe (8), outlet water control valve (9), first step back flushing water shoot (12); Water tank (6) is provided with back flushing water inlet aeration and share pipe (10).
The inventive method embodiment: former water is in lift pump is promoted to this removing of iron and manganese cascade stage fine filtering device, and this device first step adopts porous haydite as filtrate, utilizes the filtering water intake mode of seal-off pressure formula, and filtering velocity is 10m/h; The water outlet of the first step flows to distributing water room, adds NaOH to regulate the pH value at 10-12; Current get into second stage filtering layer from bottom to top subsequently, and the second stage adopts natural manganese sand as filtrate, and filtering velocity is 8m/h.The first step of circle and the second stage of outer shroud in this device is divided into.The concrete grating of these 2 grades of filtering layers is: first step particle diameter is 0.8-1.2mm, and laying depth is 700mm; Second stage particle diameter is 1.2-2.0mm, and laying depth is 400mm.Aeration intensity is 1: 0.4 for the ratio of handling the water yield and air demand.
The back flushing water inlet flows into from the back flushing water pipe of tank base, and reflexive wash-water gutter flows out behind the whole from bottom to top flushing filtering layer, and backwash rate is 12L/s.m
2, washing length is 5 minutes.
Claims (4)
1. removing of iron and manganese cascade stage fine filtering method; It is characterized in that: this method is to adopt plural serial stage homogeneous filter bed structure filtered version; Every grade of filtering layer keeps homogeneous texture; Be provided with different filter material layer (4) and supporting layer (5) in the tandem filtering basin (16), the first step is filtered and is removed common suspended substance, and the second stage is filtered and removed contained ferrimanganic in the water.
2. removing of iron and manganese cascade stage fine filtering device; It is characterized in that: by drawer type above cell filtering basin (16) are set at least, connect water inlet pipe (1) and water inlet control valve (2) on the filtering basin (16), and be provided with distributing flue (3); Have rising pipe (8) and outlet water control valve (9); And external back flushing rising pipe (12), in be provided with filter material layer (4), supporting layer (5), have water tank (6).
3. a kind of removing of iron and manganese cascade stage fine filtering device according to claim 2 is characterized in that: be provided with back flushing water inlet aeration in the water tank (6) and share pipe (10) and chemical feed pipe (14).
4. a kind of removing of iron and manganese cascade stage fine filtering device according to claim 2 is characterized in that: filter material layer (4) can be first step ceramic filter material layer, the second stage manganese sand filtration bed of material (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105200650A CN102452730A (en) | 2010-10-25 | 2010-10-25 | Cascade fine filtering method and device for removing iron and manganese |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105200650A CN102452730A (en) | 2010-10-25 | 2010-10-25 | Cascade fine filtering method and device for removing iron and manganese |
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| Publication Number | Publication Date |
|---|---|
| CN102452730A true CN102452730A (en) | 2012-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010105200650A Pending CN102452730A (en) | 2010-10-25 | 2010-10-25 | Cascade fine filtering method and device for removing iron and manganese |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395906A (en) * | 2013-08-19 | 2013-11-20 | 哈尔滨工业大学 | Water processing device by utilizing combination of iron and manganese removing technology and ultra-filter membrane technology |
| CN104107570A (en) * | 2014-07-28 | 2014-10-22 | 北京中天油石油天然气科技有限公司 | Horizontal type roller multistage packing filter |
| CN115253471A (en) * | 2022-07-25 | 2022-11-01 | 江苏省环境科学研究院 | Bidirectional flow filtering pool and treatment process thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201586414U (en) * | 2010-01-06 | 2010-09-22 | 湖北中碧环保科技有限公司 | Cascade fine depth filtering device with radiating type lateral flow for removing iron and manganese |
-
2010
- 2010-10-25 CN CN2010105200650A patent/CN102452730A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201586414U (en) * | 2010-01-06 | 2010-09-22 | 湖北中碧环保科技有限公司 | Cascade fine depth filtering device with radiating type lateral flow for removing iron and manganese |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103395906A (en) * | 2013-08-19 | 2013-11-20 | 哈尔滨工业大学 | Water processing device by utilizing combination of iron and manganese removing technology and ultra-filter membrane technology |
| CN104107570A (en) * | 2014-07-28 | 2014-10-22 | 北京中天油石油天然气科技有限公司 | Horizontal type roller multistage packing filter |
| CN104107570B (en) * | 2014-07-28 | 2016-08-24 | 北京中天油石油天然气科技有限公司 | A kind of multistage wadding filter of horizontal drum |
| CN115253471A (en) * | 2022-07-25 | 2022-11-01 | 江苏省环境科学研究院 | Bidirectional flow filtering pool and treatment process thereof |
| CN115253471B (en) * | 2022-07-25 | 2024-04-26 | 江苏省环境科学研究院 | Bidirectional flow filtering tank and treatment process thereof |
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Application publication date: 20120516 |