| Title |
Deactivation of Toxic Chemicals Including Pesticides by Electrolytic Hydrolysis of Aqueous Solution |
| Authors |
정용찬(Yong Chan Chung),정명훈(Myung Hoon Chung) |
| Abstract |
During the electrolysis of water, hydroxide and proton ions are generated at cathode and anode, respectively. Hydroxide ions from cathode can be used for the hydrolysis of toxic chemicals such as pesticides or nerve agent simulants, and proton ions around anode make aqueous solution strongly acidic enough to kill microorganisms. In addition, chloride ions from NaCl added as an electrolyte can be oxidized to hypochlorite ions which are very strong oxidant and whitening agent so that organic wastes can be decolorized and degraded. Commercial pesticides (Parathion. Paraquat, and Cartap), nerve agent simulants (PNPDPP, and PNPA). and 1-bromooctane can be deactivaed by more than 90 % in an hour, and Cyfluthrin takes at least 100 min. for the same degree of hydrolysis. But Chlorothalonil (10 hrs) and 1-bromotetradecane (5 hrs) are not easily decomposed. After the sewage water from Suwon area is treated by the electrolytic system, the quality of water can be significantly improved, judging from the reduction of COD, deodorization, and inhibition of fungal growth. The mechanism and applicability of the electrolytic hydrolysis system for the deactivation of toxic chemicals in aqueous system is thoroughly studied in this paper. |