Water purification and regeneration device based on rotary spray evaporation and application of device

A technology of rotary spray and regeneration device, applied in general water supply conservation, water/sewage treatment, chemical instruments and methods, etc., can solve the problems of coastal fishery development, salinization of coastal beaches, dynamic balance of coastal water ecosystems and aquatic biological threats and other problems, to achieve the effect of energy and resource recycling and utilization, zero discharge of pollutants, low water quality requirements, and reduced floor space.

Inactive Publication Date: 2013-07-10
陆一心 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of the seawater desalination industry and the continuous expansion of its scale, a large amount of high-concentration brine produced by traditional seawater desalination processes will threaten the dynamic balance of the coastal waters ecosystem and aquatic organisms, affect the development of coastal fisheries and cause further salinization of coastal beaches change

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  • Water purification and regeneration device based on rotary spray evaporation and application of device
  • Water purification and regeneration device based on rotary spray evaporation and application of device

Examples

Experimental program
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Effect test

Embodiment 1

[0047] In the spray drying device 5 described in this embodiment, the vacuum negative pressure is 15kPa, the air flow produced by the blower fan 8 is 78kg dry air / h, the water content is 0.27kg water / kg dry air, and the feed raw water is waste water, waste water TDS =76500mg / L, COD=6125mg / L, flow rate is 50L / h, initial temperature is 25°C, and the outlet hot air temperature of stage II heat exchanger 6 is 75°C, the purified water output is 68.2kg / h, and the output water Water quality TDS = 450mg / L, COD = 47mg / L, in line with the comprehensive sewage discharge standard GB8978-1996, and the recovery of solid components is 3634g / h.

Embodiment 2

[0049] In the spray drying device 5 described in the present embodiment, the negative pressure of vacuuming is 25kPa, the air flow produced by the fan 8 is 103kg dry air / h, the water content is 0.23kg water / kg dry air, and the feed raw water is concentrated brine, concentrated When brine TDS=92000mg / L, COD=5mg / L, flow rate is 50L / h, initial temperature is 25°C, and the outlet hot air temperature of stage II heat exchanger 6 is 75°C, the purified water output is 65.9kg / h , effluent water quality TDS = 420mg / L, COD = 1mg / L, in line with the comprehensive sewage discharge standard GB8978-1996, the recovery of solid components is 4140g / h.

[0050] The rotary spray evaporation-wastewater purification and regeneration device described in the above implementation cases reduces energy consumption by 50% and operating costs by 40% on the basis of ordinary sewage treatment processes, and is simple to operate, easy to maintain, high in energy utilization, and can be treated efficiently R...

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Abstract

The invention relates to a water purification and regeneration device based on rotary spray evaporation and application of the device. The device and a technique applied to the device are suitable for the fields of wastewater treatment and seawater desalination and in particular suitable for concentrated wastewater treatment and water purification of ultra-difficultly treated wastewater and strong brine generated after seawater desalination. The device is a water purification and regeneration device consisting of a raw water pretreatment pool, a centrifugal rotary spray device, a gas-water separator, a heat exchanger unit, a water deep treatment device and the like. The raw water is heated by using waste heat in a plant or converting natural energy obtained in a low-price mode into heat energy; and the raw water entering into a spray drying device is just subjected to coarse filtration and neutralization as well as atomization separation in the centrifugal rotary spray device, so thatthe traditional wastewater treatment process and seawater desalination technology are changed, chemical regents added in wastewater treatment and seawater desalination processes are reduced, secondary pollution is avoided, treatment time is shortened, treatment cost of per ton of water is lowered, the recycling of energy and resources and zero emission of pollutants are achieved, and the dual purposes of clean production and energy conservation and emission reduction are realized. Thus, the device has wide popularization prospect and application value.

Description

technical field [0001] The present invention relates to a rotary spray evaporation water purification and regeneration device in the field of wastewater treatment and seawater desalination and its application technology. The device and its application technology are especially suitable for treating concentrated wastewater, extremely difficult wastewater and concentrated brine after seawater desalination water purification. technical background [0002] The scarcity of water resources has become a major problem to be solved in many countries and regions in the world today. With the acceleration of industrial development and urbanization, how to develop and use efficient energy-saving and environmental protection technologies to purify wastewater and desalinate seawater, and realize energy, water The recycling and reuse of valuable substances in resources and raw water has become a trend in research, development and application in today's society. [0003] Wastewater, in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C02F1/12
CPCY02A20/124
Inventor 陆一心周坚强陆扬扬
Owner 陆一心
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