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Application of kousa dogwood to treatment of rural domestic wastewater in combined system

A technology for domestic sewage and Sizhaohua, which is applied in sustainable biological treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as low economic value, and achieve low operating cost and good purification effect. , the effect of simple and easy operation

Inactive Publication Date: 2015-03-04
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a new plant resource that is perennial with high economic value and can be used to purify rural combined domestic sewage for the above-mentioned problems of low economic value and annual growth of existing wetland plants.

Method used

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  • Application of kousa dogwood to treatment of rural domestic wastewater in combined system
  • Application of kousa dogwood to treatment of rural domestic wastewater in combined system
  • Application of kousa dogwood to treatment of rural domestic wastewater in combined system

Examples

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Embodiment 1

[0022] This example is the application of Sizhaohua to treat domestic sewage in rural combined systems. The specific application methods are as follows:

[0023] 1. Rural combined domestic sewage pretreatment

[0024] Rural combined domestic sewage contains a large amount of degradable particulate matter, sediment and other substances. If it directly enters the constructed wetland system, it is easy to block the wetland system, causing hypoxia inside the wetland system and affecting the purification capacity of the wetland system. In order to reduce the clogging effect of particulate matter in wastewater, before entering the wetland system, the wastewater is first settled and filtered to remove the sediment and floating large particles in the wastewater.

[0025] In order to ensure the effect of wastewater pretreatment, it is required that the residence time of wastewater entering the sedimentation tank is 3 hours, and the grid gap is 0.5-1cm.

[0026] 2. Construction of arti...

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Abstract

The invention discloses an application of kousa dogwood to treatment of rural domestic wastewater in a combined system, belonging to the field of wastewater treatment. The problem of pollution caused by the rural domestic wastewater in a combined system is permanently solved by planting kousa dogwood in the rural domestic wastewater in a combined system and fully utilizing the characteristics that kousa dogwood absorbs the pollutants in the rural domestic wastewater in a combined system, such as NH4<+>-N, TN, TP and CODcr, and is perennial. The beneficial effects of the invention are as follows: the investment is small, the operating cost is low, the effects are good and the operation is simple and easy to carry out; harvested kousa dogwood is a medicinal and edible tree species as the fruit of kousa dogwood can be eaten when being fresh and can be used for making wine and vinegar, kousa dogwood has the functions of warming the stomach, inducing menstruation and promoting blood circulation when being used as a medicine, swelling can be eliminated by applying the fresh leaves of kousa dogwood to wounds, and blood can be replenished and irregular menstruation and abdominal pain of women can be treated by decocting the root and seeds of kousa dogwood with water and taking the decoction; environmental protection and economic construction are combined by treating the wastewater by utilizing kousa dogwood, so that the operation mode that the traditional ecological engineering depends on the government to invest capital over the years is expected to be changed; therefore kousa dogwood has profound significance.

Description

technical field [0001] The invention relates to the field of rural combined domestic sewage treatment, in particular to an application of artificial wetland plants to purify rural combined domestic sewage. Background technique [0002] With the rapid development of agriculture in my country, rural living standards have improved significantly, and the discharge of rural sewage and wastewater has also increased significantly. According to statistics, in 2007, the total amount of rural sewage discharge in my country has exceeded 9 billion tons, but the actual treatment rate is less than 1%. In addition, the rural terrain is complex and the layout is scattered, which makes it difficult to collect and treat it like urban sewage. The random discharge of rural sewage and wastewater is one of the main reasons for the pollution of rivers, lakes, groundwater and other water environments. The problem of rural pollution is becoming more and more serious, and rural environmental pollut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 朱启红夏红霞
Owner CHONGQING UNIV OF ARTS & SCI
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