CN111777210A - Special high-quality water treatment process for chemical production - Google Patents
Special high-quality water treatment process for chemical production Download PDFInfo
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- CN111777210A CN111777210A CN202010716128.3A CN202010716128A CN111777210A CN 111777210 A CN111777210 A CN 111777210A CN 202010716128 A CN202010716128 A CN 202010716128A CN 111777210 A CN111777210 A CN 111777210A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/283—Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention provides a special high-quality water treatment process for chemical production, which comprises the following steps: raw water is sent into a quartz sand filter tank through a Y-shaped filter, and an anthracite filter material and a quartz sand filter material are arranged in the quartz sand filter tank; feeding the water filtered by the quartz sand filter tank into an active carbon filter, wherein a supporting layer quartz sand and an active carbon filter material are arranged in the active carbon filter; the water filtered by the activated carbon filter is sent into a precision filter, a plurality of filter elements are arranged in the precision filter, and the water is sent into an intermediate water tank for standby after being filtered by the precision filter. According to the technical scheme, the turbidity of the water obtained by treatment is not more than 0.1NTU, the COD of the organic matter is not more than 3mg/L, the heavy metal ions such as iron, manganese and the like are not more than 0.05mg/L, and the sulfate is not more than 150mg/L, so that the high-quality water is used for preparing chemical products, the quality such as the appearance, the performance and the like of the prepared chemical products is improved, the value of the products is improved, the process is simple, the efficiency of treating the water is high, and the water quantity required by chemical production is ensured.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to a high-quality water treatment process special for chemical production.
Background
The raw water such as groundwater, surface water, city pollution reclaimed water are generally adopted in chemical production as the process water of chemical products, however, the turbidity of the raw water is higher, the degree of refinement is not enough, the organic matter content can be different along with the change of human production activity and seasonality, suspended matters, colloids, pigments, organic matters and other heavy metals and other impurities in the raw water easily influence the appearance, performance and other production qualities of the chemical products, and the product value is reduced, therefore, how to provide special water for chemical production with high treatment efficiency, sufficient water supply amount and high quality to meet the production requirements of the chemical products becomes a technical problem to be solved urgently.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art or the related art.
Therefore, the invention aims to provide a high-quality water treatment process special for chemical production, which is characterized in that raw water is filtered and refined through a quartz sand filter tank, an activated carbon filter, a precision filter and the like, impurities are removed, the water supply amount is guaranteed, the quality of the prepared chemical product such as appearance, performance and the like is further improved, and the value of the product is improved.
In order to achieve the purpose, the technical scheme of the invention provides a special high-quality water treatment process for chemical production, which comprises the following steps:
raw water is fed into a quartz sand filter tank through a Y-shaped filter, anthracite filter materials and quartz sand filter materials are arranged in the quartz sand filter tank, the particle size of the anthracite filter materials is 0.8-1.8 mm, the thickness of the anthracite filter materials is 200-500 mm, the particle size of the quartz sand filter materials is 1-2 mm, the thickness of the filter materials is 600-800 mm, the water inlet pressure of the raw water is 0.3-0.35 MPa, and the flow of the raw water is not lower than 5m3/hr；
Feeding the water filtered by the quartz sand filter tank into an active carbon filter, wherein a supporting layer quartz sand and an active carbon filter material are arranged in the active carbon filter;
the water after the filtration treatment of the activated carbon filter is sent into a precision filter, a plurality of filter elements are arranged in the precision filter, and the filter elementsIs 5 mu m, is filtered by the precision filter and then is sent into an intermediate water tank for standby, and the water outlet flow from the precision filter is 4m3/hr。
Preferably, the precision filter is 40 inches, and 5 filter elements are arranged in the precision filter. .
Preferably, the water filtered by the quartz sand filter tank is pressurized by a pressurizing pump before being sent to the activated carbon filter, so that the water inlet pressure is not lower than 0.3 MPa;
and pressurizing the water filtered by the activated carbon filter by a pressurizing pump before the water is sent to the precision filter, so that the water inlet pressure is not lower than 0.3 MPa.
Preferably, the particle size of the active carbon filter material in the active carbon filter is 10-30 meshes, and the thickness of the filter material is 1500-1800 mm.
Preferably, the particle size of the quartz sand of the supporting layer in the activated carbon filter is 1.0mm-1.8mm, and the thickness is 300mm-500 mm.
Preferably, the special high-quality water treatment process for chemical production further comprises: when the liquid level of the intermediate water tank is higher than a first preset liquid level height, the raw water inlet valve is closed, and raw water conveying is stopped;
and when the liquid level of the intermediate water tank is lower than a second preset liquid level height, a raw water inlet valve is opened, and raw water is conveyed for treatment.
The special high-quality water treatment process for chemical production provided by the invention has the following beneficial technical effects:
(1) impurities with larger grain diameter, such as suspended matters, colloids and the like in the raw water are effectively removed through the quartz sand filter tank, the impurities such as pigment, organic matters and other heavy metals in the raw water are effectively removed through the active carbon filter, the impurities such as inorganic salt and the like are effectively removed through the precise filter, thereby obtaining the special water for chemical production with higher quality, the turbidity of the water obtained by the treatment of the special high-quality water treatment process for chemical production provided by the invention is not more than 0.1NTU, the COD of the organic matter is not more than 3mg/L, the heavy metal ions such as iron, manganese and the like are not more than 0.05mg/L, the sulfate is not more than 150mg/L, the high-quality water is used for preparing chemical products, so that the quality of the prepared chemical products, such as appearance, performance and the like, is improved, the value of the products is improved, the process is simple, the water treatment efficiency is high, and the water quantity required by chemical production is ensured.
(2) The water treatment process is pressurized, so that the water inlet pressure of each filtering device is guaranteed, and the water treatment efficiency and the sufficient water supply amount are guaranteed while the water treatment effect is guaranteed.
(3) The start-stop of water treatment process is controlled through the liquid level height of middle water tank, on the one hand, chemical production's water demand has been ensured, and on the other hand, the emergence of quality of water variation phenomenon that leads to because of water is placed the storage time overlength is reduced.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Detailed Description
The invention discloses a special high-quality water treatment process for chemical production, and a person skilled in the art can appropriately improve process parameters by referring to the content of the process. It is expressly intended that all such similar substitutes and modifications which would be obvious to one skilled in the art are deemed to be included in the invention. While the methods and applications of this invention have been described in terms of preferred embodiments, it will be apparent to those of ordinary skill in the art that variations and modifications in the methods and applications described herein, as well as other suitable variations and combinations, may be made to implement and use the techniques of this invention without departing from the spirit and scope of the invention.
The invention is further illustrated by the following examples:
example 1
Raw water is fed into a quartz sand filter tank through a Y-shaped filter, anthracite filter materials and quartz sand filter materials are arranged in the quartz sand filter tank, the particle size of the anthracite filter materials is 0.8-1.8 mm, the thickness of the anthracite filter materials is 350mm, the particle size of the quartz sand filter materials is 1-2 mm, the thickness of the filter materials is 700mm, the water inlet pressure of the raw water is 0.3-0.35 MPa, the flow of the raw water is 5m3The water temperature of raw water is 25 ℃;
pressurizing the water filtered by the quartz sand filter tank to 0.3-0.35 MPa by a pressure pump, and then sending the water into an activated carbon filter, wherein a supporting layer quartz sand and an activated carbon filter material are arranged in the activated carbon filter, the particle size of the supporting layer quartz sand is 1.0-1.8 mm, the thickness of the supporting layer quartz sand is 400mm, the granularity of the activated carbon filter material is 10-30 meshes, and the thickness of the filter material is 1600 mm;
pressurizing the water filtered by the activated carbon filter to 0.3-0.35 MPa by a pressurizing pump, sending the water into a precision filter, wherein the precision filter is provided with 5 filter elements arranged in 40 inches, the pore diameter of each filter element is 5 mu m, sending the water into an intermediate water tank for later use after filtering by the precision filter, and the water outlet flow from the precision filter is 4m3/hr。
After treatment, the turbidity of the water quality parameter is reduced to 0.05NTU from 3NTU, the COD of the organic matter content is reduced to 2.8mg/L from 38.5mg/L, the iron content is reduced to 0.05mg/L from 0.3mg/L, the manganese content is reduced to 0.05mg/L from 0.1mg/L, the sulfate content is reduced to 148mg/L from 249mg/L, the quality of the water quality is greatly improved, and the water requirement of chemical production is met.
Example 2
Raw water is fed into a quartz sand filter tank through a Y-shaped filter, anthracite filter materials and quartz sand filter materials are arranged in the quartz sand filter tank, the particle size of the anthracite filter materials is 0.8-1.8 mm, the thickness of the anthracite filter materials is 450mm, the particle size of the quartz sand filter materials is 1-2 mm, the thickness of the filter materials is 800mm, the water inlet pressure of the raw water is 0.3-0.35 MPa, and the flow of the raw water is 6m3The water temperature of raw water is 25 ℃;
feeding the water filtered by the quartz sand filter tank into an active carbon filter, wherein a supporting layer quartz sand and an active carbon filter material are arranged in the active carbon filter, the particle size of the supporting layer quartz sand is 1.0-1.8 mm, the thickness of the supporting layer quartz sand is 500mm, the particle size of the active carbon filter material is 10-30 meshes, and the thickness of the filter material is 1800 mm;
the water after the filtration treatment of the activated carbon filter is sent into a precision filter, the precision filter is a 40 inch filter with 5 filter elements arranged in the filter, the aperture of the filter element is 5 mu m, the water after the filtration treatment of the precision filter is sent into an intermediate water tank for standby, and the water outlet flow from the precision filter is 4m3/hr。
After treatment, the turbidity of the water quality parameter is reduced to 0.08NTU from 3NTU, the COD of the organic matter content is reduced to 2.9mg/L from 39.4mg/L, the iron content is reduced to 0.05mg/L from 0.3mg/L, the manganese content is reduced to 0.05mg/L from 0.1mg/L, the sulfate content is reduced to 149mg/L from 238mg/L, the water quality is greatly improved, and the water requirement of chemical production is met.
Example 3
Raw water is fed into a quartz sand filter tank through a Y-shaped filter, anthracite filter materials and quartz sand filter materials are arranged in the quartz sand filter tank, the particle size of the anthracite filter materials is 0.8-1.8 mm, the thickness of the anthracite filter materials is 250mm, the particle size of the quartz sand filter materials is 1-2 mm, the thickness of the filter materials is 600mm, the water inlet pressure of the raw water is 0.3-0.35 MPa, and the flow of the raw water is 5m3The water temperature of raw water is 25 ℃;
pressurizing the water filtered by the quartz sand filter tank to 0.3-0.35 MPa by a pressure pump, and then sending the water into an active carbon filter, wherein a supporting layer quartz sand and an active carbon filter material are arranged in the active carbon filter, the particle size of the supporting layer quartz sand is 1.0-1.8 mm, the thickness of the supporting layer quartz sand is 300mm, the granularity of the active carbon filter material is 10-30 meshes, and the thickness of the filter material is 1500 mm;
pressurizing the water filtered by the activated carbon filter to 0.3-0.35 MPa by a pressurizing pump, sending the water into a precision filter, wherein the precision filter is provided with 5 filter elements arranged in 40 inches, the pore diameter of each filter element is 5 mu m, sending the water into an intermediate water tank for later use after filtering by the precision filter, and the water outlet flow from the precision filter is 4m3/hr。
After treatment, the turbidity of the water quality parameter is reduced to 0.1NTU from 3NTU, the COD of the organic matter content is reduced to 3mg/L from 40mg/L, the iron content is reduced to 0.05mg/L from 0.3mg/L, the manganese content is reduced to 0.05mg/L from 0.1mg/L, the sulfate content is reduced to 150mg/L from 246mg/L, the quality of the water quality is greatly improved, and the water requirement of chemical production is met.
Further, when the liquid level of the intermediate water tank is higher than a first preset liquid level height, the raw water inlet valve is closed, and raw water conveying is stopped; and when the liquid level of the intermediate water tank is lower than a second preset liquid level height, a raw water inlet valve is opened, and raw water is conveyed for treatment. The first predetermined level height is 5/6 for the intermediate tank height and the second predetermined level height is 1/6 for the intermediate tank height. The water demand of chemical production is guaranteed, and the phenomenon that the water quality is deteriorated due to overlong water storage time is reduced.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. A special high-quality water treatment process for chemical production is characterized by comprising the following steps:
raw water is fed into a quartz sand filter tank through a Y-shaped filter, anthracite filter materials and quartz sand filter materials are arranged in the quartz sand filter tank, the particle size of the anthracite filter materials is 0.8-1.8 mm, the thickness of the anthracite filter materials is 200-500 mm, the particle size of the quartz sand filter materials is 1-2 mm, the thickness of the filter materials is 600-800 mm, the water inlet pressure of the raw water is 0.3-0.35 MPa, and the flow of the raw water is not lower than 5m3/hr；
Feeding the water filtered by the quartz sand filter tank into an active carbon filter, wherein a supporting layer quartz sand and an active carbon filter material are arranged in the active carbon filter;
the water after the filtration treatment of the activated carbon filter is sent into a precision filter, a plurality of filter elements are arranged in the precision filter, the aperture of each filter element is 5 mu m, the water is sent into an intermediate water tank for standby after the filtration treatment of the precision filter, and the water outlet flow of the precision filter is 4m3/hr。
2. The special high-quality water treatment process for chemical production according to claim 1,
the precision filter is 40 inches, and 5 filter elements are arranged in the precision filter.
3. The special high-quality water treatment process for chemical production according to claim 1,
pressurizing the water filtered by the quartz sand filter tank by a pressurizing pump before the water is sent to the activated carbon filter, and ensuring that the water inlet pressure is not lower than 0.3 MPa;
and pressurizing the water filtered by the activated carbon filter by a pressurizing pump before the water is sent to the precision filter, so that the water inlet pressure is not lower than 0.3 MPa.
4. The special high-quality water treatment process for chemical production according to claim 1,
the granularity of the active carbon filter material in the active carbon filter is 10-30 meshes, and the thickness of the filter material is 1500-1800 mm.
5. The special high-quality water treatment process for chemical production according to claim 1,
the particle size of the quartz sand of the supporting layer in the activated carbon filter is 1.0mm-1.8mm, and the thickness is 300mm-500 mm.
6. The special high-quality water treatment process for chemical production according to claim 1, further comprising:
when the liquid level of the intermediate water tank is higher than a first preset liquid level height, the raw water inlet valve is closed, and raw water conveying is stopped;
and when the liquid level of the intermediate water tank is lower than a second preset liquid level height, a raw water inlet valve is opened, and raw water is conveyed for treatment.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010716128.3A CN111777210A (en) | 2020-07-23 | 2020-07-23 | Special high-quality water treatment process for chemical production |
| PCT/CN2020/108860 WO2022016633A1 (en) | 2020-07-23 | 2020-08-13 | High-quality water treatment process specifically for chemical production |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010716128.3A CN111777210A (en) | 2020-07-23 | 2020-07-23 | Special high-quality water treatment process for chemical production |
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Application publication date: 20201016 |