CN105621722A - Wastewater treatment method - Google Patents
Wastewater treatment method Download PDFInfo
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- CN105621722A CN105621722A CN201410603283.9A CN201410603283A CN105621722A CN 105621722 A CN105621722 A CN 105621722A CN 201410603283 A CN201410603283 A CN 201410603283A CN 105621722 A CN105621722 A CN 105621722A
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- wastewater treatment
- sedimentation tank
- high efficiency
- sewage
- efficiency water
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Abstract
The invention discloses a wastewater treatment method. The method specifically comprises the following steps: step 1, wastewater produced from water flushing of a coal delivery system is collected, and is discharged into a preliminary sedimentation tank where the wastewater is subjected to sedimentation; step 2, coal slime sediment at the bottom of the preliminary sedimentation tank in the step 1 is fetched with a clamshell crane, and is delivered to a coal field for recovery; supernatant in the preliminary sedimentation tank in the step 1 is delivered into a secondary sedimentation tank; step 3, sewage in the secondary sedimentation tank in the step 2 is delivered into a high-efficiency water purification machine through a slurry pump, from the lower part of the high-efficiency water purification machine; and step 4, after being delivered to the high-efficiency water purification machine, sewage from the step 3 is subjected to classification treatment, such that normal industrial system water can be obtained. According to the wastewater treatment method provided by the invention, after the treatment, wastewater zero discharge and recycling can be realized.
Description
Technical field
The invention belongs to energy technology field, relate to a kind of method of wastewater treatment.
Background technology
In the place that the power plant having or coal consumption are big; all air is caused very big pollution in flue gas, lime-ash, waste water, noise, in order to protect environment, existing coal-burning installation all employ the device of substantial amounts of pollution administration environment aspect; but, still suffer from substantial amounts of waste water and discharge.
Summary of the invention
It is an object of the invention to provide a kind of method of wastewater treatment, solve the problem having a large amount of waste water to discharge in the coal-burning installation existed in prior art.
The technical solution adopted in the present invention is, a kind of method of wastewater treatment, specifically implements according to following steps:
Step 1, by coal handling system water rinse produce waste water collect, then drain into preliminary sedimentation tank and precipitate;
Step 2, preliminary sedimentation tank in step 1 is deposited in bottom coal slime claw bucket sling pull out, deliver to coal yard reclaim, by step 1 preliminary sedimentation tank upper clear supernate flow into second pond;
Step 3, the sewage in the second pond in step 2 is delivered to high efficiency water purifier through Pulp pump, enter from the bottom of high efficiency water purifier;
Step 4, in step 3, sewage produces eddy flow after entering high efficiency water purifier and rises, bigger particle suspensions sinks to sludge condensation district, tiny particle suspensions is by coagulation and is condensed into bigger particle suspensions, produce solid through eddy flow, liquid separates, the float of larger particles sinks down into sewage concentration district, still particle suspensions tiny on a small quantity is had to rise to filtering area along with eddy flow, retain through filtering layer absorption, make Water warfare flow into clear water reserviors after rising to clear water zone simultaneously, the mud in sludge condensation district is drained into preliminary sedimentation tank by high efficiency water purifier bottom row slurry valve interruption, again precipitation process.
The feature of the present invention also resides in,
Step 3 uses and during Pulp pump conveying sewage, before Pulp pump, adds inorganic coagulant by pipeline.
The concentration adding inorganic coagulant is 30��45mg/L.
Step 3 uses and during Pulp pump conveying sewage, after Pulp pump, adds organic composite coagulator by pipeline.
The concentration adding organic composite coagulator is 4��5mg/L.
In step 3, in high efficiency water purifier, the flow velocity of water is 6��8m/s, and pressure is 0.18��0.2MPa.
High efficiency water purifier in step 3 includes the clean water area on the sludge condensation district of bottom, the centrifugal separating area at middle part, the filtering area of middle and upper part, top.
The invention has the beneficial effects as follows: a kind of method of wastewater treatment of the present invention has reached zero-emission and the recycling use of waste water after waste water is processed.
Accompanying drawing explanation
Fig. 1 is the flow chart of a kind of method of wastewater treatment of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
A kind of method of wastewater treatment, specifically implements according to following steps, as shown in Figure 1:
Step 1, by coal handling system water rinse produce waste water collect, then drain into preliminary sedimentation tank and precipitate;
Step 2, preliminary sedimentation tank in step 1 is deposited in bottom coal slime claw bucket sling pull out, deliver to coal yard reclaim, by step 1 preliminary sedimentation tank upper clear supernate flow into second pond;
Step 3, through Pulp pump, the sewage in the second pond in step 2 is delivered to high efficiency water purifier, and (adding concentration by pipeline before Pulp pump during use Pulp pump conveying sewage is the inorganic coagulant of 30��45mg/L, adding concentration by pipeline after Pulp pump during use Pulp pump conveying sewage is the organic composite coagulator of 4��5mg/L), from high efficiency water purifier (high efficiency water purifier include bottom sludge condensation district, the centrifugal separating area at middle part, the filtering area of middle and upper part, the clean water area on top, in high efficiency water purifier, the flow velocity of water is 6��8m/s, pressure is 0.18��0.2MPa) bottom enter,
Step 4, in step 3, sewage produces eddy flow after entering high efficiency water purifier and rises, bigger particle suspensions sinks to sludge condensation district, tiny particle suspensions is by coagulation and is condensed into bigger particle suspensions, produce solid through eddy flow, liquid separates, the float of larger particles sinks down into sewage concentration district, still particle suspensions tiny on a small quantity is had to rise to filtering area along with eddy flow, retain through filtering layer absorption, make Water warfare flow into clear water reserviors after rising to clear water zone simultaneously, the mud in sludge condensation district is drained into preliminary sedimentation tank by high efficiency water purifier bottom row slurry valve interruption, again precipitation process.
Owing to high efficiency water purifier runs in dynamically, therefore to send out cycle of flushing long filtering area, its underpart, is generally backwash in 2��3 months once, backwashing time is 5��10min, backwashing water is from industry water, and the sewage of backwash flows into preliminary sedimentation tank by mud valve, again precipitation process.
Before using, first the Pulp pump after installing, medicine system, high efficiency water purifier are carried out single devices debugging respectively, after confirming each monomer normal operation, then carry out system entirety debugging. Before Pulp pump, inorganic coagulant is first only added when carrying out system debug, adjust waste water suspension content, test out chemical feeding quantity during effluent quality the best under various suspension content correspondence, then more respectively before mortar pump with after mortar pump add inorganic coagulant corresponding with organic composite coagulator under effluent quality the best time chemical feeding quantity.
A kind of method of wastewater treatment of the present invention has reached zero-emission and the recycling use of waste water after waste water is processed.
Claims (7)
1. a method of wastewater treatment, it is characterised in that specifically implement according to following steps:
Step 1, by coal handling system water rinse produce waste water collect, then drain into preliminary sedimentation tank and precipitate;
Step 2, preliminary sedimentation tank in step 1 is deposited in bottom coal slime claw bucket sling pull out, deliver to coal yard reclaim, by step 1 preliminary sedimentation tank upper clear supernate flow into second pond;
Step 3, the sewage in the second pond in step 2 is delivered to high efficiency water purifier through Pulp pump, enter from the bottom of high efficiency water purifier;
Step 4, in step 3, sewage produces eddy flow after entering high efficiency water purifier and rises, bigger particle suspensions sinks to sludge condensation district, tiny particle suspensions is by coagulation and is condensed into bigger particle suspensions, produce solid through eddy flow, liquid separates, the float of larger particles sinks down into sewage concentration district, still particle suspensions tiny on a small quantity is had to rise to filtering area along with eddy flow, retain through filtering layer absorption, make Water warfare flow into clear water reserviors after rising to clear water zone simultaneously, the mud in sludge condensation district is drained into preliminary sedimentation tank by high efficiency water purifier bottom row slurry valve interruption, again precipitation process.
2. a kind of method of wastewater treatment according to claim 1, it is characterised in that use in described step 3 and add inorganic coagulant by pipeline before Pulp pump during Pulp pump conveying sewage.
3. a kind of method of wastewater treatment according to claim 2, it is characterised in that the concentration adding described inorganic coagulant is 30��45mg/L.
4. a kind of method of wastewater treatment according to claim 1, it is characterised in that use in described step 3 and add organic composite coagulator by pipeline after Pulp pump during Pulp pump conveying sewage.
5. a kind of method of wastewater treatment according to claim 4, it is characterised in that the concentration adding described organic composite coagulator is 4��5mg/L.
6. a kind of method of wastewater treatment according to claim 1, it is characterised in that in described step 3, in high efficiency water purifier, the flow velocity of water is 6��8m/s, and pressure is 0.18��0.2MPa.
7. a kind of method of wastewater treatment according to claim 1, it is characterised in that the high efficiency water purifier in described step 3 includes the clean water area on the sludge condensation district of bottom, the centrifugal separating area at middle part, the filtering area of middle and upper part, top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603283.9A CN105621722A (en) | 2014-10-30 | 2014-10-30 | Wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410603283.9A CN105621722A (en) | 2014-10-30 | 2014-10-30 | Wastewater treatment method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105621722A true CN105621722A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410603283.9A Pending CN105621722A (en) | 2014-10-30 | 2014-10-30 | Wastewater treatment method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105621722A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240301A (en) * | 2019-06-28 | 2019-09-17 | 临沂矿业集团菏泽煤电有限公司 | A kind of coal mine dynamic sieve workshop waste water slagging-off recovery system and method |
| CN113385264A (en) * | 2021-06-25 | 2021-09-14 | 深圳市誉辉生态科技有限公司 | Wet-type ball-milling wet separation treatment device and method for garbage |
-
2014
- 2014-10-30 CN CN201410603283.9A patent/CN105621722A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110240301A (en) * | 2019-06-28 | 2019-09-17 | 临沂矿业集团菏泽煤电有限公司 | A kind of coal mine dynamic sieve workshop waste water slagging-off recovery system and method |
| CN113385264A (en) * | 2021-06-25 | 2021-09-14 | 深圳市誉辉生态科技有限公司 | Wet-type ball-milling wet separation treatment device and method for garbage |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160601 |