2022金砖国家工业创新大赛

入围决赛项目信息

一、参赛项目名称（中文）

城镇污水厂高效低碳原位提标扩容技术及应用

二、参赛项目名称（英文）

High efficiency and low carbon in-situ upgrading and capacity expansion technology and its application in urban sewage treatment plants

三、参赛单位（中文）

湖南三友环保科技有限公司

四、参赛单位（英文）

Hunan Sanyou Environmental Technology Co., Ltd.

五、项目简介（中文）

本技术是湖南三友环保科技有限公司自主创新研发的具有国际先进水平的城镇污水处理技术，该技术基于活性污泥法的基本原理，通过向污水处理生化单元投加微米级复合粉末载体，大幅提高单位容积内的生物量和生物活性，从而成倍提高污水处理效率。同时，在同一生化单元构建悬浮生长和附着生长“双泥”共生的流化床系统，兼具活性污泥法和生物膜法的双重特点。通过污泥浓缩分离单元，载体分离回收装置实现“双泥龄”，同步提高脱氮除磷效果。

该技术可用于城镇污水厂新建和提标改造，可与氧化沟、AAO等常规工艺进行有机结合。其突破了污水处理行业中生化时间长的世界性难题，将污水A/O处理工艺的生化时间从12小时缩短为4小时，处理污水量增长1-2倍。

采用本技术提标扩建城镇污水处理厂，无需新增用地即可实现处理水量倍增，出水可达到地表水准IV类及以上标准，提升效率，节省投资，节约用地，降低运行成本，缩短建设工期，同时碳减排效益显著，具有广泛推广意义。目前已在我国湖南、海南、湖北、河南、江苏、浙江、吉林等二十多个省份已推广应用。

六、项目简介（英文）

This technology is an internationally advanced urban sewage treatment technology independently innovated and developed by Hunan Sanyou Environmental Protection Technology Co., Ltd. The technology is based on the basic principle of activated sludge process. By adding the micron-level composite powder carriers to the sewage treatment biochemical unit, the biomass and biological activity in the unit volume can be greatly increased, and the sewage treatment efficiency can be doubled. At the same time, a fluidized bed system with "double sludge" symbiosis of suspended growth and attached growth is established in the same biochemical unit, which has the dual characteristics of activated sludge process and biofilm process. Through the sludge settling-separation unit and the carrier recovery unit, the "dual sludge retention time" is realized, and the capacities for nitrogen and phosphorus removal are improved simultaneously. This technology can be used for new construction and upgrading of urban sewage plants, and can be combined with conventional processes such as oxidation ditch and AAO. It breaks through the world-wide problem of long biochemical time in the sewage treatment industry, shortens the hydraulic retention time of the sewage A/O treatment process from 12 hours to 4 hours, and increases the treated sewage volume by 1-2 times. By adopting this technology, the water treatment capacity can be doubled without additional land use, and the effluent quality can meet the class IV standard for surface water, improving efficiency, saving investment, saving land, reducing operation cost, shortening the construction period, and achieving significant carbon emission reduction benefits, which is of wide promotion significance. At present, it has been popularized and applied in more than 20 provinces in China, such as Hunan, Hainan, Hubei, Henan, Jiangsu, Zhejiang and Jilin.

七、展示图片

工艺流程图

技术展板图

八、金砖元素

本技术目前已在中国二十多个省份进行产业化应用，客户类型包括地方水务集团、设计院、中央国企等大型集团和企业。此外，公司基于该技术与塞尔维亚开展了污水治理全面合作，该技术应用走向国际化。