Novel environment-friendly reagent for reducing leaching concentration of various heavy metals

The invention discloses a novel environment-friendly reagent for reducing leaching concentration of various heavy metals. The formula of the environment-friendly reagent comprises 0-30wt% of sodium polysulfide, 1-25wt% of sodium silicate, 0-15wt% of organic sulfur TMT-15, 0-20wt% of hydrazine hydrat...

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Bibliographische Detailangaben
1. Verfasser:	LIAO QINGLIN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADHESIVES CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING ORPROTECTING AGAINST HARMFUL CHEMICAL AGENTS CHEMISTRY DYES FIRE-FIGHTING HUMAN NECESSITIES LIFE-SAVING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention discloses a novel environment-friendly reagent for reducing leaching concentration of various heavy metals. The formula of the environment-friendly reagent comprises 0-30wt% of sodium polysulfide, 1-25wt% of sodium silicate, 0-15wt% of organic sulfur TMT-15, 0-20wt% of hydrazine hydrate, 1-20wt% of phosphate, 1-10wt% of sodium sulphide, 0-15wt% of ferrous sulfate, 0-5% of potassium permanganate, 0-5wt% of citric acid and 0-5wt% of edetic acid (EDTA). The novel environment-friendly reagent can be applied to ex-situ remediation of the traditional hazardous waste containing the heavy metals, and can also be applied to in-situ remediation of pollution site soil and underground water containing the heavy metals.