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A deep purification system for rural low-pollution water

A low-pollution water, deep purification technology, applied in the direction of water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., to achieve high efficiency, short time and low cost

Active Publication Date: 2017-03-15
DAQIAN ECOLOGY & LANDSCAPE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The aforementioned single technology has been studied to varying degrees in agricultural wastewater treatment, and there are different technical shortcomings in a single technical means
For low-pollution water in rural areas, there are no reports on the integration of three technologies to achieve advanced treatment of rural sewage

Method used

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  • A deep purification system for rural low-pollution water
  • A deep purification system for rural low-pollution water
  • A deep purification system for rural low-pollution water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A rural low-pollution water deep purification system, which combines the water treatment functions of biomass charcoal, natural biofilm and aquatic plants to realize the "trinity" rural low-pollution water purification function. Through the rural low-pollution water purification system of the present invention, goals such as utilization of biomass resources, reduction of rural sewage discharge, and reuse of nutrients such as nitrogen and phosphorus can be achieved, and it has the characteristics of low cost, environmental friendliness, and wide application. Such as Figure 11 as shown,

[0048] (1) The rural low-pollution water deep purification system provided by the present invention includes three subsystems: a biofilm purification system based on biological purification, an aquatic plant purification system, and an adsorption purification system based on biomass charcoal. The rural low-pollution water involved mainly includes planting industry drainage, aquaculture...

Embodiment 2

[0062] Embodiment 2 Biofilm-aquatic plant purification system is to the removal effect of phosphorus

[0063] This example examines the effect of the biofilm-aquatic plant purification system on the removal of phosphorus in domestic sewage. The specific operation mode of this embodiment is similar to that of Embodiment 1. Such as Figure 4 , Figure 5 As shown, in the biofilm-aquatic plant purification system, the TWW-HC treatment with carbon source has the best removal effect on phosphorus, and the removal rate can reach 80%. There was a certain degree of rebound in the later stage of the test; the control treatment showed a more significant performance, and it was always in a downward trend before 32 days, and then there was an increase in TP content, which may be caused by the release of phosphorus due to environmental disturbances. It can be seen that the present invention proposes to use biofilm-aquatic plants to jointly purify water quality to achieve better purificatio...

Embodiment 3

[0064] The removal effect of embodiment 3 biofilm-aquatic plant purification system to COD

[0065] This example examines the removal effect of the biofilm-aquatic plant purification system on the chemical oxygen demand (COD) in domestic sewage. The specific operation mode of this embodiment is similar to that of Embodiment 1. Such as Image 6 As shown, in the initial stage of the experiment, the trend of the control treatment was similar to that of the TWW treatment, and there was a slow rise after a significant decline, which may be related to the increase of plant root exudates and biofilm exudates. However, the COD value of TWW-HC treatment showed an overall downward trend, and only increased in the last sampling, which may be related to the increase of plant and biofilm secretions, the decomposition of plant shedding, and the accumulation of biofilm metabolic products. This example shows that if a better purification effect is desired, the plants in the biofilm-aquatic ...

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Abstract

The invention discloses a countryside low-pollution water deep purification system, which comprises three sub systems, wherein the three sub systems comprise a biomembrane purification system based on biological purification, a water plant purification system and an adsorption purification system based on biomass charcoal; the biomembrane purification system and the water plant purification system are positioned in a first processing unit to form a biomembrane-water plant purification system; the adsorption purification system based on biomass charcoal is positioned in a second processing unit, i.e., a biomass charcoal purification system is formed; the first processing unit and the second processing unit have a certain height difference; in addition, the water level height of the first processing unit is higher than the second processing unit so that the water flow flowing is realized through the gravity effect; after the countryside low-pollution water enters the first processing unit, the water dwell time is 1d to 10d according to the water quality condition; after the water is clear, the water enters the second processing unit through controlling a water flow control valve. The three water body purification technologies are organically combined, so that the excellent rural low-pollution water purification effect is formed.

Description

technical field [0001] The invention relates to a deep purification system for low-pollution water in rural areas, specifically, a "trinity" rural low-pollution water purification system combining biomass charcoal, natural biofilm and aquatic plants. Background technique [0002] Rural Low Pollution Water [0003] With the rapid development of the economy, the problem of agricultural non-point source pollution in my country has become increasingly serious, which has caused the water quality of many rivers, rivers, and lakes to decline, and has exacerbated the water shortage situation. According to reports, domestic sewage and livestock and poultry breeding wastewater are the two major sources of pollution in rural areas. Among them, the TN of the aquaculture wastewater in the Taihu Lake Basin is generally 30-40mg / L, and the TP is between 2.5-3.5mg / L. However, due to the large amount of sewage generated in rural areas, scattered distribution, and intermittent discharge, it ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/32
CPCY02W10/10
Inventor 冯彦房段婧婧孙海军杨林章薛利红陈玉东何世颖
Owner DAQIAN ECOLOGY & LANDSCAPE