户用沼气池建设对改善农村室内环境效果分析

Analysis on Improving Rural Indoor Environment by Using Biogas

文章通过定点采样,fi等方法,定量对比分析户用沼气池对农村室内环境改善效果。研究结果表明:沼气户室内空气中CO,NH_3,SO_2,PM_(10)等污染物浓度分别为5.64 mg·m^(-3),1.05 mg·m^(-3),0.38 mg·m^(-3),0.57mg·m^(-3),而非沼气户室内4种污染物浓度分别为144.76 mg·m^(-3),4.38 mg·m^(-3),0.73 mg·m^(-3),0.87 mg·m^(-3),沼气户明显低于非沼气户,且4种污染物浓度随季节而变化。另外,沼气户相对于非沼气户室内空气中四项污染物浓度贡献率分别为96.10%,76.03%,47.9%,34.48%。可见,户用沼气池建设对改善农村室内环境效果显著。

To analyze the effect of biogas application on improving rural indoor environment, the quantitative comparison was carried out by fix-point sampling and field monitoring. The results showed that the content of CO, NH3 , SO2, PMI0 for indoor air of biogas utilization family were 5.64 mg· m -3, 1.05 mg · m -3 , 0.38 mg · m -3 , 0.57 mg· m -3 respectively, and those for non-biogas family were 144.76 mg · m-3, 4.38 mg · m-3, 0.73 mg ·m-3, 0.87 mg · m-3 respectively, All the 4 monitored pollutant concentrations in biogas utilization families were significantly lower than those of non biogas family. And the pollutant concentration was varying with the seasons. Comparing the indoor air with non-biogas family, the CO, NH3 , SO2 , PM10 in biogas family decreased their concentration by 96.10%, 76.03%, 47.9%, 34.48% respectively. It showed that CO contributed the best in improving rural indoor air.