CN103395889A - Application of Jujun grasses in purification of nitrogen and phosphor in domestic wastewater in constructed wetland - Google Patents
Application of Jujun grasses in purification of nitrogen and phosphor in domestic wastewater in constructed wetland Download PDFInfo
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- CN103395889A CN103395889A CN2013103735611A CN201310373561A CN103395889A CN 103395889 A CN103395889 A CN 103395889A CN 2013103735611 A CN2013103735611 A CN 2013103735611A CN 201310373561 A CN201310373561 A CN 201310373561A CN 103395889 A CN103395889 A CN 103395889A
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Abstract
The invention relates to a domestic wastewater treatment technology and discloses an application of pennisetum Jujun grasses in purification of nitrogen and phosphor in domestic wastewater in constructed wetland. The application method comprises the following steps of: directly transplanting cultured pennisetum Jujun grass seedlings with the heights of 28-30 cm into a high-nitrogen-phosphor domestic wastewater constructed wetland treatment system, wherein the row spacing is 60-100cm, and the line spacing is 80-120cm; after the Jujun grasses grow for 270-280 days, harvesting the overground parts of the Jujun grasses, cutting down stems by about 1.5cm, and reserving roots for spouting. The Jujun grasses can be used for effectively utilizing nitrogen and phosphor so as to achieve the purpose of continuously purifying nitrogen and phosphor in wastewater.
Description
Technical field
The invention belongs to the sanitary sewage disposal technical field, relate in particular to the application in purifying domestic sewage nitrogen, phosphorus in artificial swamp of the huge bacterium grass of a kind of Pennisetum plant.
Background technology
In water body, the main source of phosphorus has chemical fertilizer, human and animal excreta, soil erosion and phosphorus-containing detergent.In city domestic sewage, the phosphorus in phosphorus-containing detergent is the main source of phosphorus in water body.There are some researches show, the phosphorus in lake, reservoir 80% comes from sewage discharge, and the main source of phosphorus is the use of home washings agent, and the pollution intensity of its phosphorus accounts for 50% left and right of total phosphorus pollution load.Since entering the sixties, the Big Lakes district intensive along with world population is subject to the organic pollutions such as nitrogen, phosphorus, caused the concern in many developed countries and area, started thus worldwide taboo, the motion of limit phosphorus.For a long period, China mainly solves the emission problem of trade effluent, and sanitary sewage does not almost carry out any processing and just directly is disposed in water body.
The nitrogen of high-content, phosphorus are the principal characters of body eutrophication.The water body of eutrophication can cause the breeding rapidly of algae and other planktonic organisms, causes the decline of Dissolved Oxygen in Water amount, water quality deterioration, and then causes fish and other biological mortality, and ecotope is caused to great harm.Sanitary sewage is the main source of water body nitrogen, phosphorus.Therefore, the purifying problem of solution sanitary sewage nitrogen, phosphorus seems particularly important and urgent.
Artificial marsh sewage treatment system, because its purifying contaminated thing is effective, working cost is low and the advantage such as easy care, is widely used as a kind of conventional sewage disposal technology.It is mainly usingd plant and purifies waste water as carrier.Plant for artificial swamp has reed, parasol bamboo, Medulla Junci, Canna generalis Bailey, Jiang Hua etc. at present, though these plants can be removed part nitrogen, phosphorus in water body, but plant nitrogen, phosphorus accumulation volume are not high, need high-density planting just can reach good decontamination effect improving, have increased handling cost.And the plant plant such as Canna generalis Bailey, Jiang Hua are short and small, poor growth, and plant itself is comparatively responsive to high nitrogen, high phosphorus, and after water body nitrogen, phosphorus concentration were too high, plant-growth will be suppressed, and causes decontamination effect improving to reduce.
Rapidly, after generally planting 5 months, plant height can reach 3-3.5 rice to the growth of huge bacterium grass, and stem slightly can reach 3.5 centimetres, approximately 6.94 tons, every per mu yield hay, and its vitality is vigorous, and fecundity is strong, wide accommodation, but the nitrogen of enduring high-concentration, phosphorus.
Summary of the invention
The contriver finds in the Study on purification work of being engaged in sanitary sewage nitrogen, phosphorus element: the huge bacterium grass of Gramineae Pennisetum plant has patience and accumulation characteristic significantly to high nitrogen, phosphorus in sewage.Therefore purpose of the present invention be exactly for above-mentioned nitrogen in sewage, plainization of phosphorus is not enough, the problem of constructed wetland plant shortage, and a kind of application of the new huge bacterium grass of plant variety purifying domestic sewage in artificial swamp is provided.
In order to realize the foregoing invention purpose, the technical scheme of the present invention's sampling is as follows:
Huge bacterium grass is in the application of middle nitrogen, phosphorus of purifying waste water, the huge bacterium grass of the Pennisetum plant that will cultivate annual March seedling, and high 28-30cm, directly transplant in the sanitary sewage artificial wet land treating system of high nitrogen, phosphorus spacing in the rows 60-100cm, line-spacing 80-120cm; Until the growth of huge bacterium grass, after 270-280 days, gather in huge bacterium grass over-ground part, and stay root to germinate, cut down the high about 15cm of the root and stem of certain plants, in order to reach the purpose of nitrogen, phosphorus in continuous accumulation sewage.
Prior art is compared, and the invention has the beneficial effects as follows:
The contriver finds by experimental study, and huge bacterium grass has significant characteristic of accumulation to nitrogen, phosphorus, can be in effectively utilizing sanitary sewage purify waste water nitrogen, the phosphorus of middle high-content of perennity in nitrogen, phosphorus nutrition; Huge bacterium grass plant is tall and big, growth is rapid, biomass is large, and environmental compatibility is strong, can directly as green manure, be administered to farmland; Huge bacterium grass, as the biomass energy grass, can generate electricity, produce biogas etc., is easy to the phytoremediation post-processed; The huge fungous grass planting technology is simple, and is with low cost.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology that realizes based on content of the present invention all belong to scope of the present invention.
Embodiment 1 simulation wastewater treatment test
This was tested in March, test site is located at testing ground, school district, Sichuan Agricultural University Chengdu, adopt the method for simulation artificial swamp, the high 28-30cm of the huge bacterium grass seedling of Gramineae Pennisetum plant is transplanted in simulation artificial swamp pond, spacing in the rows 80cm, line-spacing 100cm, in pond, lay the gravel of diameter 2-4cm left and right, thickness is 25cm, and its upper berth thickness is the sand bed of 5cm.
Test arranges 2 processing altogether, comprises that sewage of low concentration is processed and high-concentration sewage is processed.In sewage of low concentration, the content of N and P is respectively N:21.00mg kg
-1And P:5.24mgkg
-1, in high-concentration sewage, the content of N and P is respectively N:105.00mg kg
-1With P:26.20mg kg
-1.
Huge bacterium grass is cultivated in solarium's booth.The sample of gathering November then, cut down the about 15cm of root and stem of certain plants height.After results, measure the biomass (dry weight) of huge bacterium grass and the content of nitrogen and phosphorous such as the table 1 of over-ground part:
The accumulation characteristic of huge bacterium grass to nitrogen, phosphorus under the different simulated sewage concentration for the treatment of of table 1
The huge bacterium grass indices that obtains according to mensuration can extrapolate the per mu yield (dry weight) of this plant and to the mu amount of removing of nitrogen, phosphorus as table 2:
In table 2 simulation artificial swamp, the per mu yield of huge bacterium grass reaches the mu accumulation volume to nitrogen, phosphorus
The wastewater treatment test of embodiment 2 sewage works
It is experimental field prosperous town, Shuangliu County, Chengdu, Sichuan Province sewage work.The concrete practice is: at the huge bacterium grass seedling cultivation in gravel bed system in (gravel bed system matrix be the gravel of 2-4cm left and right) of the beginning of March by plant height 28-30cm.One-level gravel bed system spacing in the rows 60cm, line-spacing 80cm; Secondary gravel bed system spacing in the rows 100cm, line-spacing 120cm.Gather in the crops the huge bacterium grass of planting November then, and stay root to germinate, cut down the about 15cm of root and stem of certain plants height.After results, measure the biomass (dry weight) of huge bacterium grass and the content of nitrogen and phosphorous such as the table 3 of over-ground part:
The accumulation characteristic of huge bacterium grass to nitrogen, phosphorus under the different sanitary sewage disposal concentration of table 3
The huge bacterium grass indices that obtains according to mensuration can extrapolate the per mu yield (dry weight) of this plant and to the mu amount of removing of nitrogen, phosphorus as table 4:
In table 4 artificial swamp, the per mu yield of huge bacterium grass reaches the mu accumulation volume to nitrogen, phosphorus
Claims (1)
1. huge bacterium grass application in purifying domestic sewage nitrogen, phosphorus in artificial swamp, it is characterized in that: the huge bacterium grass of the Pennisetum plant that will cultivate annual March seedling, high 28-30cm, directly transplant in the sanitary sewage artificial wet land treating system of high nitrogen, phosphorus, spacing in the rows 60-100cm, line-spacing 80-120cm; Until the growth of huge bacterium grass, after 270-280 days, gather in huge bacterium grass over-ground part, and stay root to germinate, cut down the high about 15cm of the root and stem of certain plants.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013103735611A CN103395889A (en) | 2013-08-23 | 2013-08-23 | Application of Jujun grasses in purification of nitrogen and phosphor in domestic wastewater in constructed wetland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2013103735611A CN103395889A (en) | 2013-08-23 | 2013-08-23 | Application of Jujun grasses in purification of nitrogen and phosphor in domestic wastewater in constructed wetland |
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| CN103395889A true CN103395889A (en) | 2013-11-20 |
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| CN2013103735611A Pending CN103395889A (en) | 2013-08-23 | 2013-08-23 | Application of Jujun grasses in purification of nitrogen and phosphor in domestic wastewater in constructed wetland |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892743A (en) * | 2017-01-13 | 2017-06-27 | 深圳市绿洲生态工程技术有限公司 | A kind of biogas slurry, the processing method of liquid dung |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893975A (en) * | 1997-04-23 | 1999-04-13 | Roux Associates, Inc. | Enhanced subsurface flow constructed wetland |
| US7128839B1 (en) * | 2004-03-05 | 2006-10-31 | Flowers David A | Process and system for enhanced nitrogen removal in a wetland and recirculating sand filter wastewater treatment system |
| CN101224924A (en) * | 2008-01-23 | 2008-07-23 | 北京锦绣大地农业股份有限公司 | High-purification low-transpiration sewage treatment wetland system |
-
2013
- 2013-08-23 CN CN2013103735611A patent/CN103395889A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5893975A (en) * | 1997-04-23 | 1999-04-13 | Roux Associates, Inc. | Enhanced subsurface flow constructed wetland |
| US7128839B1 (en) * | 2004-03-05 | 2006-10-31 | Flowers David A | Process and system for enhanced nitrogen removal in a wetland and recirculating sand filter wastewater treatment system |
| CN101224924A (en) * | 2008-01-23 | 2008-07-23 | 北京锦绣大地农业股份有限公司 | High-purification low-transpiration sewage treatment wetland system |
Non-Patent Citations (1)
| Title |
|---|
| 马崇坚 等: "皇竹草在生态环境治理中的应用研究进展", 《中国水土保持》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892743A (en) * | 2017-01-13 | 2017-06-27 | 深圳市绿洲生态工程技术有限公司 | A kind of biogas slurry, the processing method of liquid dung |
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Application publication date: 20131120 |