CN204474444U - A kind of Chemical Pretreatment device processing high slat-containing wastewater - Google Patents
A kind of Chemical Pretreatment device processing high slat-containing wastewater Download PDFInfo
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- CN204474444U CN204474444U CN201420823689.3U CN201420823689U CN204474444U CN 204474444 U CN204474444 U CN 204474444U CN 201420823689 U CN201420823689 U CN 201420823689U CN 204474444 U CN204474444 U CN 204474444U
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- containing wastewater
- high slat
- settling tank
- ion exchange
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Abstract
A kind of Chemical Pretreatment device processing high slat-containing wastewater, the utility model belongs to water treatment field, this device comprises: equalizing tank, line mixer, settling tank, V-type filter tank and ion exchange resin system, high slat-containing wastewater collected by equalizing tank, line mixer is installed on the connecting tube between equalizing tank and settling tank, settling tank communicates with V-type filter tank, and V-type filter tank communicates with ion exchange resin system, and ion exchange resin system communicates with next section of high slat-containing wastewater treatment unit; The utility model improves the utilising efficiency of carbonic acid gas; Avoid the dust pollution adding medicament and produce; Carbonic acid gas cost is very low, saves reagent cost; Hardness removal efficiency is very high, and reaction thoroughly.
Description
Technical field
The utility model belongs to water treatment field, relates to a kind of Chemical Pretreatment device processing high slat-containing wastewater.
Background technology
Current, the removal of hardness in industrial brine waste, substantially common several treatment processs are: lime softening method, lime-soda ash tenderizer, lime-gypsum facture and Dual alkali.
Usually the hydromining lime softening method that, basicity high to hardness is high; Hydromining lime-soda ash tenderizer that, basicity high to hardness is low or Dual alkali; The negative hard water that, basicity low to hardness is high then adopts lime-gypsum facture.
Lime softening method: for avoiding adding the contamination by dust that unslaked lime (CaO) produces, usually first unslaked lime is made slaked lime (Ca (OH)
2, i.e. white lime) use, slaked lime drops in high hardness, the CaCO of formation
3with Mg (OH)
2all insoluble compound, can from water Precipitation.
Lime-soda ash tenderizer: lime softening method is only applicable to hard high, forever firmly low water conditioning temporarily.The low namely forever firmly high water of, basicity high to hardness, can adopt lime-soda ash tenderizer (or Dual alkali), add appropriate soda ash (Na while namely adding lime again
2cO
3, also known as soda).
Water after lime-soda ash softens, its hardness can reduce to 0.15 ~ 0.2mmol/L.In addition, forever firmly also can direct ion exchange method remove.
Lime-gypsum facture: for the negative hard water of high alkalinity, namely in water, total alkalinity is greater than the water of total hardness, and now unnecessary in water total alkalinity is often with NaHCO
3or KHCO
3form exist, these unnecessary basicity are often removed with lime-gypsum facture.
The method of several removal hardness above, all have that reagent consumption amount is large, dosage control difficulty large, easily the shortcomings such as dust pollution are produced to surrounding environment.
Summary of the invention
For removing problem existing in hardness in industrial brine waste at present, the utility model provides a kind of chemically pretreating process and the device thereof that process high slat-containing wastewater,
In order to realize object of the present invention, following for employing technical scheme is implemented by we:
Process a Chemical Pretreatment device for high slat-containing wastewater, comprising: equalizing tank, equalizing tank collects high slat-containing wastewater by pipeline, it is characterized in that: also comprise: line mixer, settling tank, V-type filter tank and ion exchange resin, wherein:
Described line mixer is installed on the connecting tube between equalizing tank and settling tank;
Described settling tank is communicated with V-type filter tank by pipeline;
Described V-type filter tank is led to by pipeline and Ion Exchange Resin Phase;
Described ion exchange resin is communicated with next section of high slat-containing wastewater treatment unit by pipeline.
Further, one end of described line mixer is communicated with the output channel of equalizing tank by pipeline, and the other end communicates with the inlet channel of settling tank.
Further, described line mixer is provided with inlet pipe and drug-feeding tube.
Further, described settling tank is tube settler.
Further, stirrer is provided with in described tube settler.
Beneficial effect
Device described in the utility model, by line mixer, carbon dioxide and liquid caustic soda are distributed in settling tank equably, make carbonic acid gas and sodium hydroxide obtain fully mixing and reaction by stirring lentamente in settling tank, and the calcium ions and magnesium ions finally and in waste water react to reach the object removing hardness fully simultaneously.This device has following several advantage: the utilising efficiency that 1, improve carbonic acid gas, fully can react with sodium hydroxide and calcium ions and magnesium ions; 2, the dust pollution adding medicament and produce is avoided to a great extent; 3, carbonic acid gas cost is very low, saves reagent cost; 5, hardness removal efficiency is very high, and reaction thoroughly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the Chemical Pretreatment device described in the present invention;
Embodiment
By reference to the accompanying drawings, the present invention is described further:
As shown in Figure 1, be introduced for industrial park brine waste processing item below.
Process a Chemical Pretreatment device for high slat-containing wastewater, comprising: equalizing tank 1, line mixer 5, settling tank 2, V-type filter tank 3 and ion exchange resin system 4, wherein:
Equalizing tank 1 collects the high slat-containing wastewater in industrial park by pipeline;
Line mixer 5 is installed on the connecting tube between equalizing tank 1 and settling tank 2, one end of line mixer 5 is communicated by the output channel of pipeline with equalizing tank 1, the other end communicates with the inlet channel of settling tank 2, line mixer 5 is provided with inlet pipe and drug-feeding tube;
Settling tank 2 is communicated with V-type filter tank 3 by pipeline, and settling tank 2 is tube settler, is provided with stirrer 6 in tube settler;
V-type filter tank 3 is communicated with ion exchange resin system 4 by pipeline;
Ion exchange resin system 4 is communicated with next section of high slat-containing wastewater treatment unit by pipeline.
The mean concns of each pollutent of industry brine waste is: total hardness is (with CaCO
3meter) be 1200mg/L, total alkalinity is (with CaCO
3meter) be 80mg/L for 200mg/L, TDS are 2500mg/L, COD, ammonia nitrogen is 5mg/L.Flooding velocity is 10m
3/ h.
Described equalizing tank goes out total hardness of water (with CaCO
3meter)≤2000mg/L time, with going out total hardness of water (with CaCO after this device process
3meter) can be controlled in below 150mg/L, calcium ion clearance>=90%, magnesium ion clearance>=95%, total hardness clearance>=92%.
Industry brine waste enters Chemical Pretreatment device by equalizing tank 1, and pipe laying mixing tank 5 on water inlet pipe, line mixer 5 is provided with inlet pipe and drug-feeding tube, and settling tank 2 is provided with stirrer 6.Carbon dioxide or sodium hydroxide are joined by inlet pipe or drug-feeding tube in the line mixer 5 on water inlet pipe, enter settling tank 2 with water inlet together with after mixing, and intake to realize water distribution uniformity bottom settling tank 2; Namely calcium ions and magnesium ions in carbonic acid gas and sodium hydroxide and water starts to react, and along with the rising of current, reaction is carried out gradually completely and generated the precipitation such as calcium carbonate, magnesium hydroxide; Under the stirring action of the stirrer 6 of settling tank 2, reaction is carried out more thorough, and meanwhile, along with stirring lentamente, the deposit seeds that reaction generates forms rapidly block flco, is removed under the effect of follow-up V-type filter tank 3 and ion exchange resin system 4.
When sodium hydroxide dosage be 140 ~ 180g/min, flow of carbon dioxide gas amount is 40 ~ 50L/min, the reaction times is 2 ~ 4h, stir speed (S.S.) is 100 ~ 200r/min, water temperature is 15 ~ 25 DEG C, the total hardness of Chemical Pretreatment device water outlet can remain on below 100mg/L, and delivery turbidity can remain on below 1NTU.As can be seen here, the hardness removal effect of this Chemical Pretreatment device and chemically pretreating process is very good.
Claims (4)
1. process a Chemical Pretreatment device for high slat-containing wastewater, comprising: equalizing tank, equalizing tank collects high slat-containing wastewater by pipeline, it is characterized in that: also comprise: line mixer, settling tank, V-type filter tank and ion exchange resin, wherein:
Described line mixer is installed on the connecting tube between equalizing tank and settling tank;
Described settling tank is communicated with V-type filter tank by pipeline;
Described V-type filter tank is led to by pipeline and Ion Exchange Resin Phase;
Described ion exchange resin is communicated with next section of high slat-containing wastewater treatment unit by pipeline.
2. a kind of Chemical Pretreatment device processing high slat-containing wastewater according to claim 1, is characterized in that: one end of described line mixer is communicated with the output channel of equalizing tank by pipeline, and the other end communicates with the inlet channel of settling tank.
3. a kind of Chemical Pretreatment device processing high slat-containing wastewater according to claim 2, is characterized in that: described line mixer is provided with inlet pipe and drug-feeding tube.
4. a kind of Chemical Pretreatment device processing high slat-containing wastewater according to claim 1, is characterized in that: described settling tank is tube settler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823689.3U CN204474444U (en) | 2014-12-22 | 2014-12-22 | A kind of Chemical Pretreatment device processing high slat-containing wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420823689.3U CN204474444U (en) | 2014-12-22 | 2014-12-22 | A kind of Chemical Pretreatment device processing high slat-containing wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204474444U true CN204474444U (en) | 2015-07-15 |
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ID=53630247
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|---|---|---|---|
| CN201420823689.3U Active CN204474444U (en) | 2014-12-22 | 2014-12-22 | A kind of Chemical Pretreatment device processing high slat-containing wastewater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692557A (en) * | 2014-12-22 | 2015-06-10 | 内蒙古久科康瑞环保科技有限公司 | Chemical pretreatment method and device thereof for treating high-salinity wastewater |
-
2014
- 2014-12-22 CN CN201420823689.3U patent/CN204474444U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104692557A (en) * | 2014-12-22 | 2015-06-10 | 内蒙古久科康瑞环保科技有限公司 | Chemical pretreatment method and device thereof for treating high-salinity wastewater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Junhui Inventor after: Li Le Inventor after: Guo Moran Inventor after: Yao Hongrui Inventor after: Liu Hui Inventor after: Hang Tianbang Inventor after: Zhang Jianning Inventor after: Ding Li Inventor after: Sai Shijie Inventor after: Liu Danru Inventor after: Meng Qingjun Inventor after: Li Sixu Inventor before: Wang Junhui Inventor before: Yao Hongrui Inventor before: Liu Hui Inventor before: Hang Tianbang Inventor before: Sai Shijie Inventor before: Liu Danru Inventor before: Meng Qingjun Inventor before: Li Sixu Inventor before: Li Le Inventor before: Guo Moran |