CN105254130A - Wetland sewage treatment system and method thereof - Google Patents
Wetland sewage treatment system and method thereof Download PDFInfo
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- CN105254130A CN105254130A CN201510744063.2A CN201510744063A CN105254130A CN 105254130 A CN105254130 A CN 105254130A CN 201510744063 A CN201510744063 A CN 201510744063A CN 105254130 A CN105254130 A CN 105254130A
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Abstract
The invention provides a wetland sewage treatment system which is characterized by comprising a sewage collecting tank, a pre-treatment tank, a constructed wetland and a water pump, wherein the sewage collecting tank is used for collecting and storing sewage; a sewage outlet is formed in the bottom of the sewage collecting tank; a grid is arranged at the sewage outlet; the bottom of the pre-treatment tank is 20cm lower than the bottom of the sewage collecting tank; the pre-treatment tank is connected with the sewage outlet through a pipeline; a flocculant HAc/NaAc buffer solution and polymeric aluminum are added into the pre-treatment tank; a water outlet tube is arranged in the middle of the other side of the pre-treatment tank; a gate is arranged at the water outlet tube; the gate is connected with a control system; the constructed wetland is connected with the water outlet tube; the constructed wetland comprises a sewage treatment packing layer, a substrate and wetland plants from bottom to top. The wetland sewage treatment system is high in decontamination efficiency, small in space occupation and low in treatment cost.
Description
Technical field
The present invention relates to environmental protection technical field, particularly relate to a kind of marsh sewage treatment system and method thereof.
Background technology
Wetland is the zone of transition between Lu Sheng ecology and aquatic ecological, is the ecosystem with the highest primary productivity.Wetland is not only the place of many wild fauna and flora growth and breedings, the function of also have water moisture self restraint, regulating the climate, and the more important thing is that wetland has the function of purifying waste water, and is therefore described as " kidney of the earth ".Artificial swamp essence is a synthesis ecosystem, come from the simulation to natural wetland, the energy of each symbiosis species and the regeneration of material cycle in the main application ecosystem, under the eucyclic prerequisite of promotion Pollutants in Wastewater, give full play to resource production potential, obtain the optimum efficiency of sewage disposal and resource utilization, prevent sewage from causing secondary pollution to environment.Its principle is by manually building and controlling to run the ground similar with swampland, by sewage controlledly dosing on wetland, make sewage in wetland soil gap and the surperficial process flowed in a certain direction, utilize soil, artificial dielectric, plant, the physics of microorganism, chemistry, biological triple synergy, to a kind of technology that sewage processes.The mechanism of action of its ecosystem comprises absorption, delay, filtration, precipitation, microbial decomposition, conversion, redox, plant are covered, other effects of residue accumulated, water transpiration and nutrition absorption and all kinds of animal.
Marsh sewage treatment system is a kind of wastewater treatment mode preferably, particularly it gives full play to the production potential of resource, prevent polluting again of environment, obtain the optimum efficiency of sewage disposal and resource utilization, therefore there is higher environmental benefit, economic benefit and social benefit.At present, artificial marsh sewage treatment system is widely used in the sanitary sewage disposal of developed and developing countries.Constantly study along with to marsh sewage treatment system, the unique and complex purification mechanism of wetland can play good application in the process of heavy metal industrial effluent, organic wastewater with difficult degradation thereby, and therefore the application of artificial marsh sewage treatment system is shifted from sanitary sewage and trade effluent and rural sewage improvement aspect gradually.Can say, wetland sewage disposal technology will more and more be subject to people's attention, and obtains increasingly extensive application.
But in prior art there be marsh sewage treatment system Problems existing: unit surface scrubbing efficiency is low, floor space is large, and effective use of land rate is lower, cost of investment is more high.
Summary of the invention
For solving above-mentioned Problems existing, the object of the present invention is to provide a kind of marsh sewage treatment system.Described marsh sewage treatment system scrubbing efficiency is high, saves floor occupying area and processing cost is low.
For achieving the above object, technical scheme of the present invention is:
A kind of marsh sewage treatment system, comprising:
One sewage collecting pool, for collecting sewage and storing, be provided with a sewage delivery port bottom sewage collecting pool, described sewage delivery port is provided with grid, to remove larger solid sundries;
One pretreatment pool, lower than 20cm at the bottom of described sewage collecting pool pond at the bottom of pretreatment pool pond, be connected by pipeline with described sewage delivery port, flocculation agent HAc/NaAc buffered soln and polymerize aluminum chloride is added in pretreatment pool, a rising pipe is provided with in the middle part of pretreatment pool opposite side, described effluent pipe mouth has gate, and gate is connected with Controlling System;
One artificial swamp, artificial swamp is connected with described rising pipe, and artificial swamp comprises sewage disposal packing layer, substrate and wetland plant from bottom to top, and a water pump.
Further, described sewage disposal packing layer comprises rubble, gac and coarse sand granule from bottom to top, and every layer thickness is respectively 20 ~ 30cm, 20 ~ 30cm, 5 ~ 15cm.
And described wetland plant comprises one in pleuston, emergent and submerged plant or any combination.
Further, described pleuston is the one in Herba Eichhorniae or Wildcelery Herb or duckweed.
Separately, described emergent is the one in reed or cattail or Herba Cyperi Glomerati.
Separately have, described submerged plant is the one in p.malaianus or watermifoil.
Meanwhile, in described pretreatment pool, the concentration of polymerize aluminum chloride is 1 ~ 5%.
Again, the pH of described HAc/NaAc buffered soln most 5 ~ 6.
And, the treatment process of described a kind of marsh sewage treatment system, step is as follows:
(1) sewage is collected, to be pre-treated;
(2) sewage flows into pretreatment pool after the larger solid sundries of grid removing, and now, the gate of pretreatment pool is in closing condition, HAc/NaAc buffered soln and polymerize aluminum chloride is added in pretreatment pool, stir and leave standstill, after a large amount of solid precipitation is at the bottom of pond, open gate;
(3) open water pump, the clear liquid suction artificial swamp on pretreatment pool upper strata, the number of times opening water pump every day is 5 ~ 10 times, and each interval time is not shorter than 2h.
Beneficial effect of the present invention is:
(1) the present invention adds HAc/NaAc buffered soln in pretreatment pool, maintaining liquid in pond is slightly acidic, polymerize aluminum chloride under mildly acidic conditions flocculating effect significantly improves, and greatly strengthen the pretreating effect of sewage, is conducive to disposing of sewage in artificial swamp further;
(2) the present invention directly adds the particle that flocculant poly aluminum chloride comes in sedimentation sewage in pretreatment pool, makes sediment be sunken at the bottom of pond by leaving standstill, and recycling water pump, by supernatant liquid suction artificial swamp, avoids the setting of settling bowl, reduces floor space;
(3) whole Sewage treatment systems comprises multiple waterplant, and effects of purification quality is good, has good sight simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of marsh sewage treatment system of the present invention.
In figure: 1 is sewage collecting pool; 2 is sewage delivery port; 3 is grid; 4 is pretreatment pool; 5 is rising pipe; 6 is gate; 7 is artificial swamp; 8 is water pump.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, further describe below in conjunction with drawings and Examples.
A kind of marsh sewage treatment system, comprising:
One sewage collecting pool 1, for collecting sewage and storing, be provided with a sewage delivery port 2 bottom sewage collecting pool 1, described sewage delivery port 2 is provided with grid 3, to remove larger solid sundries;
One pretreatment pool 4, lower than 20cm at the bottom of described sewage collecting pool 1 pond at the bottom of pretreatment pool 4 pond, be connected by pipeline with described sewage delivery port 2, flocculation agent HAc/NaAc buffered soln and polymerize aluminum chloride is added in pretreatment pool 4, a rising pipe 5 is provided with in the middle part of pretreatment pool 4 opposite side, described rising pipe 5 mouthfuls has gate 6, and gate 6 is connected with Controlling System;
One artificial swamp 7, artificial swamp 7 is connected with described rising pipe 5, and artificial swamp 7 comprises sewage disposal packing layer, substrate and wetland plant from bottom to top, and a water pump 8.
Further, described sewage disposal packing layer comprises rubble, gac and coarse sand granule from bottom to top, and every layer thickness is respectively 25cm, 25cm, 10cm.
And described wetland plant comprises pleuston, emergent and submerged plant.
Further, described pleuston is Herba Eichhorniae.
Separately, described emergent is reed.
Separately have, described submerged plant is p.malaianus.
Meanwhile, in described pretreatment pool 4, the concentration of polymerize aluminum chloride is 3%.
Again, the pH of described HAc/NaAc buffered soln most 5.5.
As shown in Figure 1, sewage is stored in sewage collecting pool 1, by action of gravity sewage through grid 3, flow into pretreatment pool 4 after removing larger solid sundries, now, the gate 6 of pretreatment pool 4 is in closing condition, in pretreatment pool 4, add HAc/NaAc buffered soln water body in pond is adjusted to slightly acidic, then polymerize aluminum chloride is added, stir and leave standstill fully, after a large amount of solid precipitation is at the bottom of pond, by Controlling System, gate 6 is opened.Open water pump 8, by the clear liquid suction artificial swamp 7 on pretreatment pool 4 upper strata, the number of times opening water pump 8 every day is 5 ~ 10 times, and each interval time is not shorter than 2h simultaneously.
Water quality after marsh sewage treatment system process in embodiment can reach national urban wastewater treatment firm pollutant emission standard (GB18918-2002) secondary standard category-A standard.
It should be noted that, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted.Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to the technical scheme of invention or equivalent replacement, and not depart from the scope of technical solution of the present invention, it all should be encompassed in right of the present invention.
Claims (9)
1. a marsh sewage treatment system, is characterized in that, comprising:
One sewage collecting pool, for collecting sewage and storing, be provided with a sewage delivery port bottom sewage collecting pool, described sewage delivery port is provided with grid, to remove larger solid sundries;
One pretreatment pool, lower than 20cm at the bottom of described sewage collecting pool pond at the bottom of pretreatment pool pond, be connected by pipeline with described sewage delivery port, flocculation agent HAc/NaAc buffered soln and polymerize aluminum chloride is added in pretreatment pool, a rising pipe is provided with in the middle part of pretreatment pool opposite side, described effluent pipe mouth has gate, and gate is connected with Controlling System;
One artificial swamp, artificial swamp is connected with described rising pipe, and artificial swamp comprises sewage disposal packing layer, substrate and wetland plant from bottom to top, and a water pump.
2. a kind of marsh sewage treatment system according to claim 1, is characterized in that, described sewage disposal packing layer comprises rubble, gac and coarse sand granule from bottom to top, and every layer thickness is respectively 20 ~ 30cm, 20 ~ 30cm, 5 ~ 15cm.
3. a kind of marsh sewage treatment system according to claim 1, is characterized in that, described wetland plant comprises one in pleuston, emergent and submerged plant or any combination.
4. a kind of marsh sewage treatment system according to claim 3, is characterized in that, described pleuston is the one in Herba Eichhorniae or Wildcelery Herb or duckweed.
5. a kind of marsh sewage treatment system according to claim 3, is characterized in that, described emergent is the one in reed or cattail or Herba Cyperi Glomerati.
6. a kind of marsh sewage treatment system according to claim 3, is characterized in that, described submerged plant is the one in p.malaianus or watermifoil.
7. a kind of marsh sewage treatment system according to claim 1, is characterized in that, in described pretreatment pool, the concentration of polymerize aluminum chloride is 1 ~ 5%.
8. a kind of marsh sewage treatment system according to claim 1, is characterized in that, the pH of described HAc/NaAc buffered soln most 5 ~ 6.
9. the treatment process of a kind of marsh sewage treatment system according to claim 1, it is characterized in that, step is as follows:
(1) sewage is collected, to be pre-treated;
(2) sewage flows into pretreatment pool after the larger solid sundries of grid removing, and now, the gate of pretreatment pool is in closing condition, HAc/NaAc buffered soln and polymerize aluminum chloride is added in pretreatment pool, stir and leave standstill, after a large amount of solid precipitation is at the bottom of pond, open gate;
(3) open water pump, the clear liquid suction artificial swamp on pretreatment pool upper strata, the number of times opening water pump every day is 5 ~ 10 times, and each interval time is not shorter than 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510744063.2A CN105254130A (en) | 2015-11-06 | 2015-11-06 | Wetland sewage treatment system and method thereof |
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| CN201510744063.2A CN105254130A (en) | 2015-11-06 | 2015-11-06 | Wetland sewage treatment system and method thereof |
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| CN105254130A true CN105254130A (en) | 2016-01-20 |
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| CN201510744063.2A Pending CN105254130A (en) | 2015-11-06 | 2015-11-06 | Wetland sewage treatment system and method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381943A (en) * | 2017-07-31 | 2017-11-24 | 常州市卜诺赛机电技术有限公司 | A kind of method for reducing the mine water hardness |
| CN107973494A (en) * | 2017-12-29 | 2018-05-01 | 中国水利水电科学研究院 | A kind of stream entering lake purification of water quality and water resource system for recycling |
| CN110395843A (en) * | 2019-06-28 | 2019-11-01 | 广州市园林建筑工程公司 | Artificial swamp ecological sewage treatment method |
| CN110835202A (en) * | 2019-10-23 | 2020-02-25 | 东珠生态环保股份有限公司 | Restoration method for wetland ecosystem |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1772659A (en) * | 2005-10-09 | 2006-05-17 | 徐祖信 | Combined process of reinforced biochemical flocculation and artificial wet land treatment of sewage |
| CN102765795A (en) * | 2012-07-20 | 2012-11-07 | 杨国录 | Fast Yellow River slurry separation agent and separation method of Yellow River slurry |
| CN104261531A (en) * | 2014-09-26 | 2015-01-07 | 湖南有色新田岭钨业有限公司 | Process for ore dressing of scheelite by using scheelite tailing wastewater |
-
2015
- 2015-11-06 CN CN201510744063.2A patent/CN105254130A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772659A (en) * | 2005-10-09 | 2006-05-17 | 徐祖信 | Combined process of reinforced biochemical flocculation and artificial wet land treatment of sewage |
| CN102765795A (en) * | 2012-07-20 | 2012-11-07 | 杨国录 | Fast Yellow River slurry separation agent and separation method of Yellow River slurry |
| CN104261531A (en) * | 2014-09-26 | 2015-01-07 | 湖南有色新田岭钨业有限公司 | Process for ore dressing of scheelite by using scheelite tailing wastewater |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107381943A (en) * | 2017-07-31 | 2017-11-24 | 常州市卜诺赛机电技术有限公司 | A kind of method for reducing the mine water hardness |
| CN107973494A (en) * | 2017-12-29 | 2018-05-01 | 中国水利水电科学研究院 | A kind of stream entering lake purification of water quality and water resource system for recycling |
| CN110395843A (en) * | 2019-06-28 | 2019-11-01 | 广州市园林建筑工程公司 | Artificial swamp ecological sewage treatment method |
| CN110835202A (en) * | 2019-10-23 | 2020-02-25 | 东珠生态环保股份有限公司 | Restoration method for wetland ecosystem |
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