单词 | tertiary sewage treatment |
释义 | tertiary sewage treatment [¦tǝr·shē´er·ē ¦sü·ij ´trēt·mǝnt] CIVIL ENGINEERING A process for purification of wastewater in which nitrates and phosphates, as well as fine particles, are removed; the process follows removal of raw sludge and biological treatment. Also known as advanced sewage treatment. |
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