郴州天通环保设备定制行业成员之一

工艺组成：
CAST工艺主体构筑物由SBR反应池组成，反应池内主要分为选择区和反应区。在CAST系统中，至少应设两个池子，以使系统能实现连续进水。一般地，在**个池子中进水和曝气，在另一个池子中沉淀和滗水，反之亦然。在多池系统中，通过合理的选择循环过程，可以使出水连续。使无机颗粒与**污物分离，定期将砂排入晒砂，干化后清除。污水经沉砂池后由配水管自流进入CAST池进行生物处理，处理达标后排放或部分回用。污泥则进入污泥浓缩罐，再经污泥脱水机脱水后外运。

关键技术参数
 典型的设计运行参数为：F/M值为0.04-0.10 kgBOD5/(kgMLVSS?d)；
容积负荷为0.1-0.3kgBOD5/(m3?d);
MLSS为2000-5000mg/L;
SRT为10-30d;
总HRT为15-40d。

CAST工艺特点
对污染物降解，在时间上是一个推流过程，微生物处于好氧-缺氧-厌氧周期性变化之中，因此，CAST工艺具有较好的脱氮、除磷功能。其采用连续进水，一个完整的操作周期包括，曝气阶段、沉淀阶段、滗水阶段和闲置阶段四个步骤。CAST工艺*初沉池、二沉池，具有建设费用低，占地面积省，运行费用低，自动化控制程度高，管理方便，氮、脱磷去除效果好，出水稳定，运行可靠，耐负荷冲击能力强，不发生污泥膨胀等优点。

CAST工艺采用UASB反应器，生化调试启动快，处理效率高，占地面积小，沼气产量稳定，实现沼气稳定回收利用，节能环保，经济效益明显。风干污泥作为**肥料用于农作物施肥。出水水质优于行业标准，直接回用农田灌溉，回用率90%。
Jining Tian Tong Environmental Protection Technology Co., Ltd. is an environmental protection enterprise which integrates R & D, production, sales, technology application and promotion. The company mainly undertake production and drinking water purification, sewage treatment engineering and environmental protection equipment manufacturing, sales business. The production of environmental protection equipment mainly includes the production and sale of buried integrated sewage treatment equipment, scraper and suction machine, air floater, inclined tube precipitator and filter tank. Environmental protection projects are mainly devoted to the design, construction, installation and commissioning of various industrial sewage, medical waste water and domestic sewage.

Company and China University of Petroleum, Ocean University of China and other industry contacts in the many well-known colleges and universities, employing a number of well-known domestic and foreign experts to guide our teaching, achieve the company will continue to forge ahead, keep pace with the times, new technology, new achievements in practice, better realize the enterprise to reduce the emission of pollutants, protecting the local environment. Our company has a large number of elites who have long been engaged in the design and construction of sewage engineering, with rich experience and mature technology.