Title:
有毒有機物によって汚染された農地の土壌の施肥・成長促進・毒性低減のための統合処理方法
Document Type and Number:
Japanese Patent JP7001881
Kind Code:
B2
Abstract:
The invention discloses a feeding improvement method for remedying toxic organic contaminated soil through the oxidation of a compounded oxidizing agent. The method comprises the following steps that:a sodium persulfate solution is put at the bottom of a reactor; contaminated soil is added, then ferrous sulfate heptahydrate and a potassium oxalate monohydrate solution are added; uniform stirringis performed to prepare slurry, hybrid reaction is performed on the slurry for 12-36 hours at normal temperature; finally calcium peroxide is added, full and uniform mixing is performed with total reaction maintenance time being 5-10 days, and polycyclic aromatic hydrocarbon in the soil can be effectively removed after the reaction is finished. According to the method of the invention, the addingmode of the oxidizing agent obtained through sodium persulfate-calcium peroxide compounding is improved; the oxidizing agent is added into the reaction system at different reaction time, the remediation efficiency of the compound oxidizing agent is improved, meanwhile, the proportion of the compound system is further optimized, various polycyclic aromatic hydrocarbons in soil can be effectively removed, the remediation efficiency of sodium persulfate-calcium peroxide compound oxidation is improved by 20%-30%, and the availability of remediated soil is improved.
Inventors:
Takahiko Sei
張暁▲ふぁん▼
Royal building
張暁▲ふぁん▼
Royal building
Application Number:
JP2021009993A
Publication Date:
January 20, 2022
Filing Date:
January 26, 2021
Export Citation:
Assignee:
Nanjing Agriculture University
International Classes:
C09K17/00; A01G7/00; A01G24/22; C05F15/00; C09K17/06; C09K17/16; C09K17/42; C09K17/48
Domestic Patent References:
| JP2001179211A |
Foreign References:
| KR20100009450A | ||||
| WO2009157387A1 |
Other References:
土層改良計画の考え方,農業土木学会誌,日本,51巻11号,第7-13頁
Attorney, Agent or Firm:
Tsubouchi Koji