濾層排水 的英文怎麼說
中文拼音 [lǜcéngbèishuǐ]
濾層排水
英文
filter drain-
In drainage of agricultural lands, a filter or gravel envelope is used to prevent the entrance of fine sand and silt into the drains.
在農田排水中常常採用礫石或過濾層來防止粉細砂和泥沙進入排水溝。To facilitate drainage of groundwater and to maintain water flow, permeable rocks will be used for recompaction. filter layer and weepholes will also be installed. these will guarantee the normal flow of groundwater
為促進排水及保持正常水流,工程將使用具滲透性的石塊作重新壓實,同時安裝過濾層及疏水孔,以確保地下水仍可如常流出。The results show that the main pollutants are ss and cod, and it is effective to treat the wastewater by manmade suspended layer process, and the quality of filtered water is satisfied with the standard
結果表明,加工海帶時正常排放廢水的主要污染物是懸浮物( ss ) , cod含量也超過了排放標準,採用人工懸浮層工藝處理海帶廢水的效果較好,過濾后的水質基本可以滿足排放標準。
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