西部山区农村生活污水产污特征分析

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中图分类号：X508 文献标识码：A 文章编号：1008-9500（2025）05-0262-03

DOI： 10.3969/j.issn.1008-9500.2025.05.079

Abstract： Taking theruraldomesticsewagein Zhongliang town，Qinzhoudistrict，Tianshui cityastheresearchobjecttracking and monitoring indicators are conducted，such asdailyproduction，pHvalue，Chemical OxygenDemand （COD），ammonia nitrogen （NH -3 -N），Total Nitrogen （TN）and Total Phosphorus （TP）.The results show that the average pH value of domestic sewage is 7.13，and the average daily production per household is 38.78L/d±3.31L/d in summer and 32.36L/d±3.75L/d （20 in winter; the per capita pollution production coefficients of COD， NH 3 -N，TN and TP are 22.50，1.59，1.98，and 0.37 g/d in summer and 19.85，1.38， 1.83，and 0.31g/d in winter，respectively. The main influencing factors of per capita daily production， COD， NH3. -N，TN，and TP of domestic sewage are season， income level， and living habits.

Keywords： rural domestic sewage; pollution characteristics; influence factors

随着城镇化的发展，我国西部山区生活污水的日排放量逐年增加[，污水普遍含有一定的氮和磷，可生化性较好。（剩余2385字）