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    • 4. 发明授权
    • Method and apparatus for removing biodegradable compounds from wastewater
    • 从废水中除去生物可降解化合物的方法和装置
    • US4271013A
    • 1981-06-02
    • US32897
    • 1979-04-24
    • Aniruddha Bhattacharyya
    • Aniruddha Bhattacharyya
    • C01C1/10C02F1/04C02F1/58C02F3/12C02F3/08
    • C02F3/085C01C1/10C02F1/048C02F1/586C02F3/1231Y02W10/15Y10S210/903
    • A method for removing biodegradable compounds selected from the group comprising: phenolics, free and fixed ammonia compounds, thiosulfates, cyanides, thiocyanates, sulfides and the like from a feed wastewater. The method comprises the steps of treating the feed wastewater by adding soda ash thereto; and further treating the wastewater by means of an activated sludge treatment in a sludge reactor to reduce the level of biodegradable compounds in the wastewater.A method for removing biodegradable compounds selected from the group comprising phenolics, free and fixed ammonia compounds, thiosulfates, cyanides, thiocyanates, sulfides and mixtures thereof from a feed wastewater comprising the steps of: treating the feed wastewater with an inorganic carbon source; and further treating the wastewater by means of a single-stage activated sludge treatment in a sludge reactor to reduce the level of said biodegradable compounds in the wastewater.An apparatus for treating a wastewater containing biodegradable compounds including free and fixed ammonia. The apparatus comprises an ammonia still for removing free and fixed ammonia; a source of soda ash solution; and means connected to the source of soda ash solution for feeding soda ash solution from the soda ash source to the ammonia still to decompose the fixed ammonia in the wastewater. The apparatus further comprises a single-stage activated sludge reactor for treating the wastewater to reduce the level of biodegradable compounds in the wastewater.BACKGROUND OF THE INVENTION
    • 从进料废水中除去选自包括酚类,游离和固定氨化合物,硫代硫酸盐,氰化物,硫氰酸盐,硫化物等的生物可降解化合物的方法。 该方法包括以下步骤:通过向其中加入苏打灰处理进料废水; 并通过污泥反应器中的活性污泥处理进一步处理废水,以降低废水中可生物降解化合物的含量。 从进料废水中除去选自苯酚类,游离和固定氨化合物,硫代硫酸盐,氰化物,硫氰酸盐,硫化物及其混合物的生物降解化合物的方法,包括以下步骤:用无机碳源处理进料废水; 并通过污泥反应器中的单级活性污泥处理进一步处理废水,以降低废水中所述可生物降解化合物的含量。 一种用于处理包含游离和固定氨的可生物降解化合物的废水的设备。 该装置包括氨,用于除去游离和固定的氨; 纯碱溶液的来源; 连接到纯碱溶液源的装置,用于将苏打灰溶液从苏打灰源送至氨,以分解废水中的固定氨。 该装置还包括用于处理废水以降低废水中可生物降解的化合物的水平的单级活性污泥反应器。