Title: Spray washing method for removing heavy metal from domestic garbage compost
Application Number: 200610129873 Application Date: 2006.12.05
Publication Number: 1962562 Publication Date: 2007.05.16
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C05F9/04;B09B3/00
Applicant(s) Name: Tianjin Normal University Address:
Inventor(s) Name: Duo Li
Attorney & Agent: liuyang lan
Abstract:
    The invention discloses a leaching method to remove heavy metal and restore living rubbish piling fertilizer, which allocates kinds of density of surface activator LAS, DL-malic acid, citrate single or composite leaching agent, wherein the leaching method comprises the following steps: (1) predisposing rubbish piling fertilizer; removing impurity such as plastic film, brick, stone and glass; (2) baking the fertilizer at 60-100 Deg C; removing water; drying for 2-8h; (3) placing rubbish piling fertilizer in the leakage device to collect leaching liquid; leaching the rubbish piling fertilizer; setting the weight of rubbish piling fertilizer and leaching agent at 1: 1-3; leaching for three times; collecting the leaching liquid.
Time: 9