Veriansyah, B Kim, JD Lee, YW 2024-01-21T03:42:34Z 2024-01-21T03:42:34Z 2021-09-02 2006-01 1001-0742 https://pubs.kist.re.kr/handle/201004/135844 Supercritical water oxidation (SCWO) has been drawing much attention due to effectively destroy a large variety of high-risk wastes resulting from munitions demilitarization and complex industrial chemical. An important design consideration in the development of supercritical water oxidation is the information of decomposition rate. In this paper, the decomposition rate of dimethyl methylphosphonate(DMMP), which is similar to the nerve agent VX and GB(Sarin) in its structure, was investigated under SCWO conditions. The experiments were performed in all isothermal tubular reactor with a H2O2 as an oxidant. The reaction temperatures were ranged from 398 to 633 degrees C at a fixed pressure of 24 MPa. The conversion of DMMP was monitored by analyzing total organic carbon (TOC) on the liquid effluent samples. It is found that the oxidative decomposition of DMMP proceeded rapidly and a high TOC decomposition up to 99.99% was obtained within 11 s at 555 degrees C. On the basis of data derived from experiments, a global kinetic equation for the decomposition of DMMP was developed. The model predictions agreed well with the experimental data. English SCIENCE PRESS MANUFACTURING PROCESS WASTE-WATER Decomposition kinetics of dimethyl methylphospate(chemical agent simulant) by supercritical water oxidation Article 1 JOURNAL OF ENVIRONMENTAL SCIENCES, v.18, no.1, pp.13 - 16 JOURNAL OF ENVIRONMENTAL SCIENCES 18 1 13 16 scie scopus 000234759500004 2-s2.0-33746364791 Environmental Sciences Environmental Sciences & Ecology Article MANUFACTURING PROCESS WASTE-WATER supercritical water oxidation kinetics chemical agent DMMP