CAJ | 학술논문

过碳酰胺是一种新型精细化工品,也是一种新型N肥,其应用和开发在国外已得到广泛的研究,而在我国还刚刚起步.为考察过碳酰胺作为一种N肥去除土壤中有机污染物的作用和潜力,将修复与施肥结合,为过碳酰胺应用于环境污染修复提供新的理论依据,特进行了本研究.本文采用室内土培试验等手段,研究了1种酸性土壤中施入过碳酰胺后对2种非离子表面活性剂TritonX-100和Tween80的降解效果.试验结果表明:过碳酰胺对2种非离子表面活性剂都有明显的降解效果,降解速度均是在第2周时较快,此后.随着降解时间的延长,降解速率逐渐下降.8周后1000mg/kg Tween80的残留浓度仅有195.46mg/kg土,降解率高达80%以上.5 mmol/kg的过碳酰胺降解2周后已有明显降解效果,但继续增加过碳酰胺浓度.其降解效果并非相应增加.
과탄선알시일충신형정세화공품,야시일충신형N비,기응용화개발재국외이득도엄범적연구,이재아국환강강기보.위고찰과탄선알작위일충N비거제토양중유궤오염물적작용화잠력,장수복여시비결합,위과탄선알응용우배경오염수복제공신적이론의거,특진행료본연구.본문채용실내토배시험등수단,연구료1충산성토양중시입과탄선알후대2충비리자표면활성제TritonX-100화Tween80적강해효과.시험결과표명:과탄선알대2충비리자표면활성제도유명현적강해효과,강해속도균시재제2주시교쾌,차후.수착강해시간적연장,강해속솔축점하강.8주후1000mg/kg Tween80적잔류농도부유195.46mg/kg토,강해솔고체80%이상.5 mmol/kg적과탄선알강해2주후이유명현강해효과,단계속증가과탄선알농도.기강해효과병비상응증가.
Percarbamide is an important chemical product and a new fertilizer, widely used abroad, but not in China so far. In order to evaluate the combining effects of percarbamide as a remediation agent of nonionic suffactants and a crop fertilizer, two nonionic surfactants, Triton X-100 and Tween80, in soil were investigated with percarbamide as a remediation agent. The results showed that percarbamide could degrade well the two kinds of nonionic surfactants. The degradation speed was rapidly during the initial 2nd week and dropped with the time prolonging. The residual concentration of Tween80 was only at the level of 195.46 mg/kg, in other words, degradation ration exceeded 80%. 5 mmol/kg percarbamide had already obvious degradation effects, but the effects of perearbamide on the two nonionic surfactants did not enhance with the concentration increase of percarbamide.