Biodegradation wastewater treatment system and method employing salt gradient solar pond for heat storage

A wastewater treatment system, biodegradation technology, applied in the field of biodegradation wastewater treatment system, can solve the problems of low heat exchange efficiency, insufficient energy saving and environmental protection, environmental pollution, etc., to avoid pollution and excessive energy consumption, and prevent water evaporation Effect

Inactive Publication Date: 2021-03-05
QINGHAI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing technology, heating by burning fossil fuels or electric heating will not only increase the consumption of fossil fuels, but also cause environmental pollution problems, which is not enough for energy saving and environmental protection
However, using ordinary solar ponds to heat biochemical wastewater has the problem of low heat exchange efficiency.

Method used

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  • Biodegradation wastewater treatment system and method employing salt gradient solar pond for heat storage

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the present invention provides a biodegradable wastewater treatment system for heat storage in a salt gradient solar pond, comprising: a degradation treatment subsystem 10 and a salt gradient solar pond heat storage subsystem 20, and the degradation treatment subsystem 10 includes a biochemical wastewater storage bin 1. The first connecting pipe 2 and the waste water treatment tank 5. The biochemical waste water storage bin 1 communicates with the waste water treatment tank 5 through the first connecting pipe 2. The waste water treatment tank 5 is provided with a serpentine heat exchange Tube 7, the serpentine heat exchange tube 7 can fully contact with the biochemical wastewater in the wastewater treatment tank 5, and the serpentine heat exchange tube 7 is used to heat the biochemical wastewater in the wastewater treatment tank 5; the salt gradient solar pond heat storage subsystem 20 Including a solar pool 9 and a second connection pipe 8, t...

Embodiment 2

[0030] On the basis of Example 1, in order to absorb solar energy more efficiently.

[0031] Such as figure 1 As shown, wherein, the salt gradient solar pond heat storage subsystem 20 also includes a photothermal coating 6, which is arranged at the bottom of the solar pond 9, and the photothermal coating 6 can efficiently convert solar energy into heat energy and provide The brine in the lower troposphere LCZ23 is heated.

[0032] The photothermal coating 6 located at the bottom of the solar pool 9 can efficiently convert solar energy into thermal energy, and heat the brine in the lower troposphere LCZ23, greatly improving the utilization efficiency of solar energy.

Embodiment 3

[0034] On the basis of Example 1, in order to absorb solar energy more efficiently.

[0035] Such as figure 1 As shown, wherein, the salt gradient solar pond heat storage subsystem 20 also includes a concentrating cover 4 covering the top of the solar pond 9, and the inner surface of the concentrating cover 4 has a certain curvature to prevent water vapor from condensing into ice. The condenser cover 4 has high light transmittance and light collection.

[0036] The condenser cover 4 has the function of heat preservation, which can not only prevent the surface of the upper troposphere UCZ21 from freezing under extremely cold weather conditions, but also prevent strong winds from blowing directly on the upper troposphere UCZ21, causing ripples on the upper surface of the upper troposphere UCZ21, and affecting the overall light transmittance of the salt water. It also prevents the water in the brine from evaporating, causing the salt to condense and precipitate out at the bottom...

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Abstract

The invention discloses a biodegradation wastewater treatment system and method employing a salt gradient solar pond for heat storage, belonging to the technical field of biochemical wastewater treatment. The biodegradation wastewater treatment system employing the salt gradient solar pond for heat storage comprises: a degradation treatment subsystem, which comprises a biochemical wastewater storage bin, a first connecting pipe and a wastewater treatment box, wherein the biochemical wastewater storage bin communicates with the wastewater treatment box, and an S-shaped heat exchange pipe is used for heating biochemical wastewater; and a salt gradient solar pond heat storage subsystem, which comprises a solar pond and a second connecting pipe, wherein the solar pond comprises an upper convection layer UCZ which communicates with the S-shaped heat exchange pipe and a lower convection layer LCZ which communicates with the S-shaped heat exchange pipe, and a liquid conveying pump is arrangedon the second connecting pipe. According to the biodegradation wastewater treatment system and method employing the salt gradient solar pondfor heat storage, solar energy is used for heating biochemical wastewater, the S-shaped heat exchange pipe can make full contact with the biochemical wastewater to allow a temperature range needed by biochemical wastewater treatment to be reached, so energy conservation and environmental protection are achieved; and the biodegradation wastewater treatment system and method can be widely applied to biochemical wastewater treatment in alpine regions.

Description

technical field [0001] The invention relates to the technical field of biochemical wastewater treatment, in particular to a biodegradable wastewater treatment system and method for heat storage in a salt gradient solar pond. Background technique [0002] With the continuous increase of industrial wastewater and domestic sewage, water pollution control is the most important and effective technical measure to solve water pollution problems. How to deal with water pollution efficiently, energy-saving and environmentally friendly is imminent, and the application of high-efficiency biochemical treatment technology is very common. Due to the differences in geographical location in various regions, in the cold winter, the water environment temperature is 4-8 ℃, the microorganisms cannot metabolize normally, the activity is low, and the biochemical treatment effect is extremely poor, causing the activated sludge to float and age. Maintaining normal activity of microorganisms in wast...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F1/02
CPCC02F1/02C02F1/14Y02A20/212
Inventor 陈晓弢王晓司杨李万琴郭永庆陈来军梅生伟
Owner QINGHAI UNIVERSITY
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