| 粗粒沉积物对污水的净化能力试验研究 |
| 摘要点击 732 全文点击 738 投稿时间：1994-08-17 |
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| 中文关键词 污水净化 粒粒沉积物 连续注入 间歇注入 |
| 英文关键词 purifying of waste water coarse sediments continuous infiltration intermittent infiltration |
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| 中文摘要 |
| 采用连续和间歇2种注入方式,对粗粒松散沉积物净化污水的能力进行了试验研究。结果表明,1.5m厚的砂卵石层对污水中细菌、合成洗涤剂、总铬等污染物的净化率可达50%以上。间歇注入试验对Mn(Ⅱ)的净化率可达76.15%,而连续注入试验仅为24.7%。污水在粗粒沉积物中的入渗属氧化条件,有利于硝化作用进行。 |
| 英文摘要 |
| The capacity of coarse sediments to purify waste water was determined in laboratory by both continuous and intermittent infiltration tests.It was found that more than 50 percent of bacteria,synthetic detergent and total chromium can be removed from the municipal waste water after its infiltrating through a 1.5m thick gravel soil. The removal of Mn(Ⅱ)may be up to 76.2% in the intermittent infiltration test,but only 24.7% in the continuous infiltration test.There is an aeration condition in coarse sediments when waste water is infiltrating through it,that is advantageous for nitrification. |
