化粪池钢模具是生产水泥预制化粪池的模具模型。化粪池是指将生活污水分格沉淀，及对污泥进行厌氧消化的小型处理构建物。
Septic tank steel mold is the mold model of cement prefabricated septic tank. Septic tank is a kind of small-scale treatment structure, which can separate domestic sewage for sedimentation and anaerobic digestion of sludge.
化粪池是主要应用在小区，学校，体育场，办公楼以及广场地下的一种排污辅助设备，起到保障人们处理生活垃圾，模具的材质一般分为塑料注塑成型还有钣金钢模具成型，生产原理是将混凝土倒入塑料模具或铁模具内，等水泥凝固后在拆模或者脱模成型，化粪池钢模具主要采用钣金钢切割而成，材质直接影响模具的使用寿命。水泥化粪池钢模具本身就是一个收集污物，再进行降解、转化、过滤的容器。之所以要对化粪池模具进行清掏，是因为该容器的容量有限，要把那些常年无法降解的物质清理出来，让化粪池有足够的空间，才能起到继续收集和转化功能。化粪池模具中沉淀下来的污泥经过3个月以上的厌氧消化，使污泥中的有机物分解成稳定的无机物，易坏的生污泥转化为稳定的熟污泥，改变了污泥的结构，降低了污泥的含水率。定期将污泥清掏外运，填埋或用作肥料。
Septic tank is a kind of sewage auxiliary equipment which is mainly used in residential areas, schools, stadiums, office buildings and underground squares. It plays a role in protecting people's treatment of domestic waste. The mold materials are generally divided into plastic injection molding and sheet steel mold molding. The production principle is to pour the concrete into the plastic mold or iron mold, and then remove the mold or demould the mold after the cement solidifies The steel mould is mainly made of steel plate, and the material directly affects the service life of the mould. The steel mould of cement septic tank itself is a container for collecting dirt, then degrading, transforming and filtering. The reason why we need to clean the septic tank mold is that the capacity of the container is limited. We need to clean up the substances that cannot be degraded all the year round, so that the septic tank has enough space to continue to collect and transform. After more than 3 months of anaerobic digestion, the organic matter in the sludge is decomposed into stable inorganic matter, and the perishable raw sludge is transformed into stable mature sludge, which changes the structure of sludge and reduces the moisture content of sludge. The sludge is regularly removed, transported, landfilled or used as fertilizer.