Title:
IN-LINE HEAVY METAL DETECTION AND SOLID WASTE DEHAZARDIZATION METHOD
Document Type and Number:
WIPO Patent Application WO/2018/148870
Kind Code:
A1
Abstract:
To address risks of secondary pollution, high treatment cost, and difficulties in large scale implementation of the prior art, the present invention discloses an in-line heavy metal detection and solid waste dehazardization method, wherein the technical procedure thereof comprises the following steps: step 1: leaching of a heavy metal; step 2: precipitation of the heavy metal; and step 3: recycling of the heavy metal. The invention is characterized that an in-line heavy metal detection process is added in step 1 and step 2. If a heavy metal ion content fails to satisfy a threshold requirement in step 1, then an acid wash process is performed repeatedly until the requirement is met. If a heavy metal ion content fails to satisfy a threshold requirement in step 2, then a heavy metal ion stabilizing agent is added and processing is performed until the requirement is met. The invention realizes in-line detection of processing data of a heavy metal solid waste, and satisfies dehazardization, minimization, and recycling requirements of a heavy metal solid waste processing technique.
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Inventors:
TAN WEI (CN)
ZHAO XIAOFENG (CN)
SHEN HONG (CN)
WU YANQI (CN)
ZHAO XIAOFENG (CN)
SHEN HONG (CN)
WU YANQI (CN)
Application Number:
PCT/CN2017/073539
Publication Date:
August 23, 2018
Filing Date:
February 14, 2017
Export Citation:
Assignee:
SHENZHEN ENERGY ENV ENG CO LTD (CN)
International Classes:
B09B3/00; B09B5/00
Foreign References:
| CN106862235A | 2017-06-20 | |||
| JPS56168873A | 1981-12-25 | |||
| CN203269686U | 2013-11-06 | |||
| JP2000212654A | 2000-08-02 | |||
| CN101509078A | 2009-08-19 |
Attorney, Agent or Firm:
GUANGDONG GUANGHE LAW FIRM (CN)
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