Flying ash harmless treatment resource recycling utilization device and treatment method

A harmless treatment and recycling technology, applied in chemical instruments and methods, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve problems such as environmental hazards, irregular markets, inadequate supervision, etc. The effects of chlorine product safety, high detoxification efficiency, and pure water quality

Active Publication Date: 2017-02-15
湖州京兰环保科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the cost of fly ash disposal is high
On the other hand, due to the unregulated market, inadequate supervision and vicious competit

Method used

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  • Flying ash harmless treatment resource recycling utilization device and treatment method
  • Flying ash harmless treatment resource recycling utilization device and treatment method
  • Flying ash harmless treatment resource recycling utilization device and treatment method

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Embodiment Construction

[0036] See attached Figure 1~3 , a fly ash harmless treatment resource recycling device, which includes sequentially connected solid-phase catalytic dechlorination detoxification and removal of dioxin system Ⅰ, waste incineration fly ash three-stage water elution desalination system Ⅱ, heavy metal removal system Ⅲ, membrane Distillation concentration system IV and salt crystallization system V; the solid-phase catalytic dechlorination detoxification and dioxin removal system uses mineral catalysts to induce dioxin dechlorination and remove dioxins in fly ash. After dechlorination, the phenyl parent A non-toxic and harmless high-polymer product is generated through a condensation reaction; the waste incineration fly ash three-stage water elution desalination system washes off a large amount of salt in the fly ash from which dioxins have been removed, and in the three-stage water washing filtrate after water washing There are also some heavy metal ions remaining; the heavy meta...

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Abstract

The invention relates to a flying ash harmless treatment resource recycling utilization device and a treatment method. The flying ash harmless treatment resource recycling utilization device comprises a solid-phase catalytic dechlorination detoxification dioxin-removing system, waste incineration flying ash three-level water-washing desalination system, a heavy metal removing system, a membrane distillation concentration system and a salt crystallization system. The solid-phase catalytic dechlorination detoxification dioxin-removing system removes dioxin in flying ash. The waste incineration flying ash three-level water-washing desalination system removes a large amount of salt in the dioxin-removed flying ash. Part of heavy metal residues still exists in a three-level water-washing filtrate obtained after water washing. The heavy metal removing system removes a large number of calcium and magnesium ions and a few of heavy metal ions contained in the three-level water-washing filtrate, and a heavy-metal-removed supernatant is obtained. The membrane distillation concentration system conducts distillation contributing water reusing on the supernatant, and a concentrated solution is generated. The salt crystallization system conducts evaporative crystallization on the concentrated solution, and crystal salt containing 7% of water and condensate water are obtained. Through the flying ash harmless treatment resource recycling utilization device and the treatment method, the flying ash can be subjected to harmless treatment, and resource utilization can be achieved.

Description

[0001] Technical field: [0002] The invention relates to the field of garbage fly ash treatment, and more specifically relates to a fly ash harmless treatment resource recycling device and a treatment method. [0003] Background technique: [0004] Fly ash is the residue of waste incineration, and 90% of the carcinogen "dioxin" produced by waste incineration is in the fly ash. Improper handling of fly ash that has not been solidified, and a large amount of heavy metals and dioxins in it will cause serious pollution accidents and endanger the health of residents. At present, only a few cities across the country are dealing with waste incineration fly ash. On the one hand, the cost of fly ash disposal is very high. On the other hand, due to the unregulated market, insufficient supervision and vicious competition, the "fly ash" is in a state of "flying randomly". If fly ash cannot be safely disposed of, it will be a great hidden danger to the environment. [0005] Invention c...

Claims

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Application Information

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IPC IPC(8): B09B3/00B09B5/00C02F9/10C02F101/20C02F101/22
CPCC02F1/08C02F1/24C02F1/5236C02F1/56B09B3/00B09B5/00C02F2101/22C02F2101/20B09B3/40
Inventor 黄启飞高兴保高从堦王中华辛宝平
Owner 湖州京兰环保科技有限公司
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