System and method for treating rural sewage by using ecological system based on multi-submerged plant combinations

A technology of submerged plants and ecosystems, applied in the field of sewage treatment, can solve the problems of easy failure, easy blockage, lack of pure ecological treatment technology, etc.

Active Publication Date: 2014-07-30
GUANGZHOU RESOURCE ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The purification capacity of these fish ponds and rivers is low, so that not only the fish ponds or rivers are polluted, but also the discharged water will still pollute the environment
[0006] 3. The construction of treatment stations requires engineering construction. The noise, solid and liquid waste, and flying dust during the construction period still have great adverse effects on the environment and people's lives. The landscape effect of the engineering facilities after completion is not good. Requires additional landscaping investment
[0007] 4. The sewage treatment station still needs some follow-up maintenance and management, and it is prone to failure. For example, the constructed wetland is prone to blockage after a long time of use
[0008] 5. Lack of effective pure ecological governance technology
There is no attempt to use a variety of submerged plants in organic combinations for sewage treatment, and there is no precedent for using an ecosystem based on a variety of submerged plants in organic combinations to treat sewage

Method used

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  • System and method for treating rural sewage by using ecological system based on multi-submerged plant combinations
  • System and method for treating rural sewage by using ecological system based on multi-submerged plant combinations
  • System and method for treating rural sewage by using ecological system based on multi-submerged plant combinations

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Experimental program
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Effect test

Embodiment 1

[0069] Denggang Village Fish Pond Project of Jili Village:

[0070] Reference figure 1 with figure 2 , The system for treating rural sewage using an ecosystem based on a combination of multiple submerged plants described in this embodiment includes a pond 1, which is divided into an enhanced treatment area 11 in the order of water inflow to outflow. Namely the first treatment zone), the deep purification zone 12 (ie the second treatment zone), and the landscape enhancement zone 13 (ie the third treatment zone). Water flows through the enhanced treatment zone, the deep purification zone, and the landscape enhancement zone in sequence. The areas are not completely separated by impermeable fiber membranes, and one end of the water-proof membrane 2 is left with a water outlet. The first treatment area is provided with a water inlet 101 for receiving sewage, a first water outlet 102 is provided between the first treatment area and the second treatment area, and a water inlet 102 is ...

Embodiment 2

[0085] Reference Figure 3-Figure 4 The characteristics of this embodiment are: the water inlet of each treatment area should be located at the upper part, and the water outlet should be located at the lower part; the water outlet of each treatment area should be connected to an outlet pool 14 so that the water in the next area is at the upper part and the outlet pool 14 enters The method of the next area should be the water drop method; the water level of each area should be 10cm lower than the water level of the previous area. The above method is to ensure that the water flow distance is long enough to prevent short flow. Others are the same as the specific embodiment 1.

Embodiment 3

[0087] The features of this embodiment are:

[0088] In the enhanced treatment area, the submerged plant combination A: Hydrilla verticillata + Elodea. Add microorganisms in this area, the dosage is 5g / m 3

[0089] In the deep purification zone, the submerged plant combination B is planted: bitter grass + prickly pear + potflower + thorn grass. Put zooplankton 25g / m in the area 3 , Shrimp 5g / m 3 , Snails 0.5kg / m 3 , Shellfish 0g and microorganisms 10g / m 3 .

[0090] In the landscape enhancement area, the submerged plant combination C is planted: bitter grass + hornwort + myriophyllum. Put carnivorous fish 5g / m in this area 3 , Shrimp 10g / m 3 , Snails 1kg / m 3 , Shellfish 10g / ㎡ and microorganism 15g / m 3 .

[0091] Others are the same as the specific embodiment 1.

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Abstract

The invention discloses a system and method for treating rural sewage by using an ecological system based on multi-submerged plant combinations. From the water inlet to the water outlet, the system sequentially comprises three regions in a pond, wherein a submerged plant combination A, which comprises more than any two of hydrilla, waterweed, Najas minor, curly pondweed and bog pondweed, is planted in the first treatment region; a submerged plant combination B, which at least comprises Vallisneria spiralis and vallisneria spinulosa, is planted in the second treatment region; and a submerged plant combination C, which comprises more than any two of hydrilla, waterweed, Najas minor, Vallisneria spiralis, vallisneria spinulosa, curly pondweed, bog pondweed, watermilfoil and hornwort, is planted in the third treatment region. The system and method are simple to implement, have the advantages of low cost and favorable effect, and do not need additional pipe network engineering and land; and the effluent water can achieve Grade 1 A above in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant. The system can be used as a natural landscape, and has the advantages of high transparency of the water body, high biodiversity and high ecological landscape value.

Description

Technical field [0001] The invention relates to a sewage treatment system and method, in particular to an artificially established ecological system containing zooplankton, microorganisms, fish, shellfish, snails and shrimps based on a combination of multiple submerged plants Rural sewage treatment system and method. It belongs to the field of sewage treatment technology. Background technique [0002] With the development of society, the adverse effects of rural sewage on the rural surrounding environment and the environmental problems caused by it have become increasingly apparent, and the treatment of rural sewage has become an important issue for environmental protection. At this stage, the traditional rural sewage treatment method is mainly to build a sewage collection pipe network and a decentralized rural sewage treatment station to achieve decentralized treatment. The treatment process used is mainly an integrated buried sewage treatment system (aerobic or anaerobic biolo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 苏蕾黄秀玲王英丽邓颖辉杨浩文钟志华
Owner GUANGZHOU RESOURCE ENVIRONMENTAL PROTECTION TECH CO LTD
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