A solar septic tank device and treatment process for domestic sewage pretreatment

A domestic sewage and septic tank technology, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, energy wastewater treatment, etc., can solve problems such as complicated operation, long reaction process, and complicated treatment process, and achieve Enhanced degradation ability, increased back-mixing degree, and improved removal efficiency

Inactive Publication Date: 2019-03-29
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the centralized domestic sewage treatment process is complicated, the reaction process is long, the operation is complicated, and the energy consumption is relatively high. It is not suitable for the decentralized domestic sewage in rural areas and other areas.
[0004] 3. Although the existing septic tank can treat this kind of scattered domestic sewage, the treatment effect is not good, which increases the difficulty and cost of subsequent treatment

Method used

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  • A solar septic tank device and treatment process for domestic sewage pretreatment
  • A solar septic tank device and treatment process for domestic sewage pretreatment
  • A solar septic tank device and treatment process for domestic sewage pretreatment

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Embodiment

[0049] Using the pretreatment device of the present invention to treat domestic sewage in a rural area in southern Jiangsu, the water volume is 4.5m 3 / d, the hydraulic retention time of sewage in the first cell of the septic tank is 24h. The waste water enters the septic tank for pretreatment, and the effective volume of the septic tank is 5.2m 3 ; The volume of the first compartment is 1.65×1.32×1.20 (length, width and height, unit: meter), and the volume of the second and third compartments is 0.825×1.32×1.20 (length, width and height, unit: meter). The water inlet pipe in the first compartment of the septic tank is 500mm from the bottom, the diameter of the heating disc is 600mm, and the hole diameter is 20mm. Three heating plates are installed, and the distance between the heating orifice plates is 60mm. The distance is 200mm.

[0050] According to the calculation of the preheated water temperature and water volume and time, the power that the solar panel can provide sh...

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Abstract

The invention discloses a solar septic tank apparatus and treatment process for pretreating domestic sewage and applies to small-scale distributed domestic sewage, wherein the septic tank apparatus comprises a solar system and a septic tank, the septic tank comprises a first compartment, a second compartment and a third compartment divided by a first partition and a second partition, the first compartment is an inflow compartment, the second compartment is a transition compartment, and the third compartment is a filter compartment; in the first compartment, provided are heating plates in multiple tiers, each heating plate is provided with at least one circle of uniformly distributed pores; the third compartment is provided with a second inflow pipe and a filter layer, a water inlet of the second inflow pipe is connected to a second water inlet, and a water outlet of the second inflow pipe is positioned at the lower end of the filter layer. Compared with traditional septic tanks, the invention is insusceptible to ambient temperature, anaerobic digestion is enhanced by controlling a temperature field and a flow field, and degrading ability of microorganisms and pollution removal efficiency can be improved.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to an anaerobic domestic sewage pretreatment device and treatment process utilizing solar energy. Background technique [0002] 1. In the existing domestic sewage treatment, especially in decentralized treatment facilities, the use of septic tanks is relatively common. It is a pretreatment facility that uses the principle of sedimentation and anaerobic fermentation to remove suspended organic matter in domestic sewage. It belongs to Primary life processing structures exist widely in both urban and rural areas. [0003] 2. The treatment of decentralized domestic sewage has increasingly become the focus of environmental protection work. The current centralized domestic sewage treatment process is complicated, the reaction process is long, the operation is complicated, and the energy consumption is relatively high. It is not suitable for the decentralized domestic sewage treatm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F101/30C02F101/16
CPCY02W10/37
Inventor 傅大放韦昆李桂年王友冰
Owner SOUTHEAST UNIV
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