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高人翻译一下酚氰污水处理的摘要钢铁工业炼焦工艺中产生大量酚氰废水，这种废水中含有高浓度的酚、氰化物、氨氮、油类等物质，COD高达2000mg/L以上，若直接排放，将会给环境造成极大的危害。目前，国内外大多数焦化厂酚氰废水采用好氧生化处理法，它具有处理量大、运行费用低，去除污染物效率高的优点。本设计根据废水中污染物的特性及排放要求，选取普通活性污泥法工艺。预处理阶段，采用重力隔油法和气浮法除去大量石油类物质。生化处理阶段，由于废水的COD含量较高，且含有氰化物等有毒物质，采用二段曝气法除去大量有机污染物，使废水达到《污水综合排放标准》(GB 8978－1996)三级排放标准。污泥处理阶段，采用重力浓缩池来降低污泥含水率，并通过污泥脱水间进一步处理，使得污泥含水率大大降低。
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只看楼主 我来说两句抢地板The design of a high-end executive office of Shanghai central air conditioning system, high-end executive office building set in Shanghai business, entertainment, office, dining in one of the modern office building with a total land area of 6667.5 square meters, the basic rectangular, east-west The average length of about 97 meters north-south to the average width of 22.5 meters; ground floor height of 3.9 meters, the ground layer 9, a total height of 38.1 meters, the building covers an area of 1830 square meters with a total building area of 15,000 square meters , 1 floor underground equipment room, ground floor restaurant and 1,2-integrated business lobby, ground floor office 3-9, conference and entertainment venues. Designed to be whom the central air conditioning system for staff to provide a comfortable indoor working environment. 3 ~ nine-borne mainly by air-conditioned room fan coil cooling load and heat load, placed within the ceiling of each room one or two concealed fan coil. Fresh Air fresh air through the independent channels into the fan coil first, then mixed together with the return air into the room. First and the second for the hall, dining room and other large spaces, all-air system. For the practical use of the basement, the ventilation system design programs, mechanical ventilation systems and mechanical ventilation systems.
Design involves the following aspects: air-conditioning system air conditioning regimen, air-conditioning system cooling load and moisture load calculations, air-conditioning system system layout, calculation of air-conditioning system air distribution, air conditioning and accessories selection, air-conditioning system, hydraulic calculation, duct insulation system and plumbing system design; Noise vibration machine room design and the design of refrigeration, ventilation system design and layout.
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