Soil heavy metal capturing curing agent, and preparation method and application method thereof

A heavy metal and curing agent technology, applied in the field of soil remediation, can solve the problems of small flocs, slow precipitation, poor removal of mercury and arsenic, etc., and achieves the effects of no secondary pollution, less pollution, and large flocs.

Inactive Publication Date: 2019-01-22
陈德茂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems that the flocs in the soil heavy metal capture agent on the market are fine and slow to settle, the pH of different heavy metal precipitation is different, which leads to separate treatment, the risk of heavy metal io...

Method used

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  • Soil heavy metal capturing curing agent, and preparation method and application method thereof
  • Soil heavy metal capturing curing agent, and preparation method and application method thereof
  • Soil heavy metal capturing curing agent, and preparation method and application method thereof

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Embodiment Construction

[0036]To prepare 100kg of component A and component B, the specific preparation method is as follows:

[0037] The first, the preparation of 100kg component A soil heavy metal capture solidifying agent, by component A1 sodium dimethyl dithiocarbamate (SDDS) 4%, component A2 trimercapto-s-triazine trisodium (TMT-15) 6 %, component A3 γ-polyglutamic acid (γ-PGA) 90% preparation:

[0038] Component A1: (SDDS) powder 100kg×4%=4kg;

[0039] Component A2: (TMT-15) powder 100kg×6%=6kg;

[0040] Component A3: (γ-PGA) powder 100kg×90%=90kg;

[0041] Measured and weighed according to the proportion, respectively put into the mixer and start stirring for 5-10 minutes to mix evenly to obtain 100kg of the total part of component A (soil heavy metal capture and solidification agent).

[0042] The second, the preparation of 100kg component B carbon-enriched selenium-enriched organic bacterial fertilizer soil nutrient conditioner, is prepared by measuring and weighing according to the foll...

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Abstract

The invention discloses a soil heavy metal capturing curing agent, and a preparation method and an application method thereof. The soil heavy metal capturing curing agent is composed of a component Aand a component B; the component A is composed of dimethyldithiocarbamic acid sodium salt, trimercapto-s-triazine trisodium, and gamma-glutamic acid; and the component B is composed of biochar, selenium dioxide or equal amount of sodium selenite, humic acid and fulvic acid mixture, EM bacteria, and large, medium, and trace element water soluble fertilizers. The soil heavy metal capturing curing agent is capable of complexing heavy metal ions, and realizing one time processing of coexist metals; obtained flocculating constituent is large; capturing deposition is rapid; stabilizing time is long;heat resistance and acid and alkali resistance are excellent; and pollution is low.

Description

Technical field: [0001] The invention relates to the technical field of soil remediation, in particular to a soil heavy metal capture and solidification agent, a preparation method and a use method thereof. Background technique: [0002] Heavy metal pollution refers to the environmental pollution caused by heavy metals and their compounds. It is mainly caused by human factors such as mining, exhaust gas discharge, sewage irrigation, and the use of products with heavy metals exceeding the standard. The enrichment of plants and animals and the transformation of the food chain will eventually endanger human health and at the same time lead to the deterioration of environmental quality. The characteristics of heavy metals: metals with a specific gravity greater than 5.0 (such as mercury, cadmium, lead, chromium, etc.) have bioaccumulation, non-degradability in the environment, irreversibility of heavy metal soil pollution, and mobility and biological toxicity. Invention c...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/00C09K17/40A01B79/02B09C1/08C09K101/00C05G3/80
CPCA01B79/02B09C1/08C05D9/00C05G3/00C09K17/40C09K2101/00C05G3/80C05D9/02C05F11/02C05F11/08C05G1/00
Inventor 陈德茂张欢赵赟鑫刘玲侠
Owner 陈德茂
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