UC知道4 十分一句的翻译
来源：百度知道 编辑：UC知道 时间：2024/07/07 06:46:03
17 In some wastewater treatment plant, the fecl3(or alum) is added before the wastewater enters the primary sedimentation tank.
18 This is improves the efficiency of the primary tank, but deprive the biological processes of needed nutrients.
Nitrogen Control
19 Nitrogen in any soluble form (nh3, nh4+,no2,and no3-,but not n2 gas) is a nutrient and may need to be removed from wastewater to help control algae growth in the receiving body.
20 In addition, nitrogen in the form of ammonia exerts an oxygen demand and can be toxic to fish.
21 Removal of nitrogen can be accomplished either biologically or chemically.
21 The biological process is called nitrification/denitrification.The chemical process is called ammonia stripping.
18 This is improves the efficiency of the primary tank, but deprive the biological processes of needed nutrients.
Nitrogen Control
19 Nitrogen in any soluble form (nh3, nh4+,no2,and no3-,but not n2 gas) is a nutrient and may need to be removed from wastewater to help control algae growth in the receiving body.
20 In addition, nitrogen in the form of ammonia exerts an oxygen demand and can be toxic to fish.
21 Removal of nitrogen can be accomplished either biologically or chemically.
21 The biological process is called nitrification/denitrification.The chemical process is called ammonia stripping.
17 一些废水处理厂会在废水进入沉降池前在其中预先加入氯化铁（或明矾）。
18 这提高了预处理池的效率，但阻止了生物从废水中吸收营养。
氮元素控制
19 在任何可溶性的形式下的氮元素(氨，铵离子，二氧化氮，硝酸根离子，但非氮气)都是营养物质，可能需要从废水中除去，以助于控制接受水体中的藻类繁殖。
20 另外，在氨水形式下的氮元素会消耗水中的氧，并毒害鱼类。
21 除去氮元素使用生物法及化学法均可。
21 这种生物过程被称作硝化作用/反硝化作用.化学过程被称作脱氮作用。
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17在某一废水处理植物中， fecl3 (或白矾)增加，在污水进入主要沈降槽之前。
18这是改进主要坦克的效率，但剥夺生物过程需要的营养素。
氮气控制
19氮气在不是所有可溶解形式(nh3、nh4+、no2和no3-，但n2气体)是营养素，并且也许需要从污水被去除帮助控制海藻成长在接受身体。
另外20，氮气以氨的形式施加氧气需求，并且可以是毒性的钓鱼。
21去除氮气可以被完成生物或化工。
21生物过程称氮的硝化作用或反硝化作用。化学过程叫氨剥离。