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在济南市玉清湖引黄水库修建了表流人工湿地、往复流人工湿地和推流人工湿地,考察了人工湿地对微污染原水中CODMn的去除效果,同时分析了人工湿地中基质对有机物的去除作用。结果表明,人工湿地对微污染原水中的CODMn有较好的去除效果,往复流人工湿地、推流人工湿地、表流人工湿地对CODMn的去除率分别为(31.37%~58.12%)、(27.10%~57.65%)、(17.10%~34.45%);系统中植物、微生物和基质等组分的共同作用是人工湿地处理微污染原水的机理所在,其中基质发挥了重要作用,经推流和往复流人工湿地处理后,基质表面的C元素由4.30%分别上升至4.42%和4.60%、N元素由4.10%分别上升至6.58%和6.70%、P元素由零分别上升至9.10%和9.58%。
The artificial wetland, reciprocating flow constructed wetland and push flow constructed wetland were constructed in the Yellow River Reservoir of Yuqing Lake in Jinan City. The removal effect of artificial wetland on CODMn in micro-polluted raw water was investigated. At the same time, the effects of matrix on organic matter Remove effect. The results showed that the constructed wetlands had a good removal effect on CODMn in the slightly polluted raw water. The removal rates of CODMn in the reciprocating flow constructed wetlands, the push flow constructed wetlands and the surface flow constructed wetlands were respectively (31.37% -58.12%), (27.10 % ~ 57.65%), (17.10% ~ 34.45%). The synergistic effect of plant, microorganism and matrix in the system is the mechanism of the constructed wetlands for the treatment of micro-polluted raw water. The matrix plays an important role. After treated with flow constructed wetland, the content of C increased from 4.30% to 4.42% and 4.60% respectively, while that of N increased from 4.10% to 6.58% and 6.70%, respectively. The content of P increased from zero to 9.10% and 9.58% respectively.