Wastewater Treatment Equipment | Package Wastewater Treatment Systems

Working Principle Wastewater first goes through a screen or equalization tank, which catches large debris and buffers flow swings. It then enters the biological stage, where microorganisms break down organic matter under anoxic and aerobic conditions while also removing nitrogen and phosphorus. Next, solids separate from the water in the settling zone. The clear water is disinfected and then discharged or reused, and sludge is removed on a regular basis. Since the units are integrated into one system, piping is short and the footprint is small. Application Fields 1.Domestic sewage: daily discharge from residential communities, towns, schools, hospitals, hotels, and similar sites. 2.Industrial wastewater: organic wastewater from food, chemical, printing and dyeing, pharmaceutical, and other industries. 3.Water reuse: treated water for irrigation, toilet flushing, and street washing. 4.River restoration: intercepting and treating black-odor water to reduce direct discharge. FAQ Q1: What types of wastewater can this equipment handle? A: It handles domestic sewage and industrial organic wastewater similar to domestic sewage—food processing, brewing, hotel and restaurant discharge, for example. If the industrial wastewater contains heavy metals, hard-to-degrade organics, or high salinity, pre-treatment or a specialized process is needed. When influent quality fluctuates a lot, an equalization tank helps buffer the swings. Q2: What materials are package wastewater treatment systems usually made of? A: Coated carbon steel, fiberglass (FRP), and stainless steel are the most common. Carbon steel is strong and cost-effective; with good coating, it can last over a decade. Fiberglass resists corrosion and is lightweight, making it a good fit for buried installations. Stainless steel offers the best corrosion resistance but costs more, so it's mostly used where requirements are high. The choice depends on water quality, burial depth, and budget. Q3: How does an integrated unit compare with a concrete tank? A: An integrated unit combines several treatment stages in one shell. It takes up less space, installs quickly, and doesn't require on-site concrete work. A concrete tank costs less, but construction takes longer, it needs more land, and modifying or expanding it is a hassle. Integrated units suit projects with small flow, tight space, and a need to get up and running fast—they're also easier to relocate or expand later.