chap 2-2 水污染詞彙表

Glossary 詞彙表
Chapter 20

cultural eutrophication 文化優養化

Near urban or agricultural areas, human activities can greatly accelerate the input of plant nutrients to a lake—a process called cultural eutrophication involving mostly nitrate- and phosphate-containing effluents from various sources.
近市區或農業地區,人類活動可能大大加快植物養分投入湖中,這個過程被稱為文化優養化,這大都是涉及硝酸鹽和磷酸鹽,是從各種來源的含污水。

eutrophication優養化

the name given to the natural nutrient enrichment of a shallow lake, estuary, or slowmoving stream, mostly from runoff of plant nutrients such as nitrates and phosphates from surrounding land.
這個名稱是指營養豐富的自然的淺水湖泊、河口、緩流,其大多數是來自植物營養素徑流,如從周圍的土地流入的硝酸鹽和磷酸鹽。

nonpoint sources 非點源

broad, and diffuse areas, rather than points, from which pollutants enter bodies of surface water or air.
這些污染物進入地表水或空氣中,主要來自寬廣、分散的地區,而不是固定的地點。

point sources點源

discharge pollutants at specific locations through drain pipes, ditches, or sewer lines into bodies of surface water.
排放污染物有特定地點,這是通過排水管、溝渠,或污水管線到地表水體中。

primary sewage treatment初級污水處理

Raw sewage reaching a treatment plant typically undergoes one or two levels of wastewater treatment. The first is primary sewage treatment—a physical process that uses screens and a grit tank to remove large floating objects and to allow solids such as sand and rock to settle out.
將未經處理的原水引入污水處理廠,通常經歷一個或兩個層次的廢水處理。第一個是初級污水處理,主要是物理過程,它使用過濾器和一個砂礫槽,以清除大型漂浮物,並允許固體,如沙子和岩石就可以加以處置。

secondary sewage treatment二級污水處理

Raw sewage reaching a treatment plant typically undergoes one or two levels of wastewater treatment. The second level is secondary sewage treatment—a biological process in which aerobic bacteria remove as much as 90% of dissolved and biodegradable, oxygen-demanding organic wastes.
將未經處理的原水引入污水處理廠,通常經歷一個或兩個層次的廢水處理。第二個層次是二級污水處理,屬於生物過程,好氧細菌可消除高達90%的溶解和生物性可降解的需氧有機廢物。

septic tank化糞池

In rural and suburban areas with suitable soils, sewage from each house usually is discharged into a septic tank with a large drainage field.
在農村和城市郊區的合適的土壤,從每個家庭排出的污水,通常是排入一個大型排水場地的化糞池。

water pollution 水污染

any chemical, biological, or physical change in water quality that harms living organisms or makes water unsuitable for desired uses.
水質中任何化學,生物或物理的變化,會危害生物體或使水不適合預期的用途。
Last modified: Sunday, 1 November 2009, 9:16 PM