지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.1
- 수록면
- 568 - 574 (7page)
이용수
초록· 키워드
오류제보하기
Degradation of thiophosphate fungicide, tolclofos-methyl in the aquatic environment is mainly biotic, whereas both hydrolytic and photolytic breakdowns are slow and of minor importance. Thus, hydrolysis of tolclofos-methyl during $Ca(OH)_2$ treatments, degradation of fungicide tolclofos-methyl by zerovalent iron, and effect of ferric salts during zerovalent iron treatment were investigated. Unannealed zerovalent iron was used as zerovalent iron source. Tolclofos-methyl was found to undergo hydrolysis only at pH level as high as 12 in aqueous solutions, and its degradation in the soil appeared to be achieved only by biotic degradation. Ferric sulfate and ferric chloride were the most effective for degrading tolclofos-methyl by unannealed zerovalent iron in aqueous solution. Order of effectiveness of salts is $FeCl_3$ > $Fe_2(SO_4)_3$ > $FeSO_4$ > $Al_2(SO_4)_3$; only ferric chloride salts were effective for enhancing tolclofos-methyl degradation in the soil slurry. Degradation rate of tolclofos-methyl in the soil slurry was observed up to 25 and 37% by adding 1 and 3% $FeCl_3$ respectively. It was 2-3 orders of magnitude higher than the degradation by unannealed zerovalent iron alone. Enhanced effect of ferric chloride on tolclofos-methyl degradation by unannealed zerovalent iron was retarded when 5% salts was added into soil slurry. Addition of $FeCl_3$ into soil, in the absence of unannealed zerovalent iron, was found to degrade tolclofos-methyl to some extent.
목차
등록된 정보가 없습니다.
참고문헌 (0)
참고문헌 신청이 논문의 저자 정보
최근 본 자료
댓글(0)
0