Custom Automatic Domestic Sewage Treatment Equipment For Residential Village Hotel Restaurant Hospital Decentralized Wastewater Purification System

This custom automatic domestic sewage treatment equipment is a modular, intelligent decentralized wastewater purification solution tailored for scattered water-consuming sites without complete municipal sewage pipe networks. Optimized with mature AO+MBR combined biological process and PLC full-automatic control system, it is specially customized for residential villages, catering restaurants, tourist hotels, public hospitals and other scattered domestic sewage discharge scenarios. It solves the  points of traditional centralized sewage treatment such as high pipeline laying cost, long construction cycle and low treatment efficiency for dispersed wastewater, achieving stable standard discharge, on-site sewage disposal and water resource recycling for decentralized communities and public venues. The full text counts 802 words.

Different from standardized integrated sewage devices, this equipment supports full personalized customization covering daily water treatment capacity, buried/surface-mounted structure, material grade, effluent standard and functional modules. The daily treatment volume can be adjusted from 5 cubic meters to 500 cubic meters to match differentiated sewage discharge volume: small-scale models fit village cluster communities and boutique homestays, while large customized units meet high-load sewage treatment demands of general hospitals and large catering complexes. Adopting anti-corrosive carbon steel, FRP or stainless steel as optional tank materials, the equipment adapts humid coastal areas, cold northern plateau areas and corrosive catering oil-water sewage environments, with a service life up to 18 years, far exceeding ordinary decentralized sewage facilities.

Equipped with a fully automatic intelligent operating system, the whole purification process runs unattended 24/7. Built-in PLC intelligent control panel realizes automatic water inflow, aeration, sludge reflux, sedimentation, membrane filtration and ultraviolet disinfection linkage operation. The system has built-in multi-sensor modules to monitor water COD, BOD5, ammonia nitrogen and total phosphorus in real time, automatically adjusting aeration frequency and microbial activity according to influent water quality fluctuation. It features overload protection, power failure memory and fault automatic alarm functions, which greatly reduces manual intervention. On-site staff only need regular quarterly simple inspection, cutting daily operation labor cost by over 70% compared with traditional manual regulated sewage treatment tanks.

The internal purification process is divided into five closed treatment sections to remove pollutants hierarchically. Firstly, the pre-treatment section intercepts food residues, hair, sediment and large suspended solids from restaurant and domestic sewage to protect subsequent membrane components. Then the anoxic tank degrades organic pollutants and completes denitrification to remove total nitrogen. Followed by the aerobic biological contact oxidation tank, high-concentration dominant microorganisms decompose organic matter, grease and nitrogen pollutants efficiently. The MBR membrane separation unit replaces traditional secondary sedimentation tank to realize efficient mud-water separation, improving purification efficiency. Finally, the disinfection tank eliminates coliform bacteria to make effluent safe for reuse. Process parameters can be modified remotely to adapt special sewage characteristics, such as high-oil wastewater from restaurants and high-bacteria medical wastewater from hospitals.

This customized decentralized system boasts prominent site adaptability and environmental benefits. It supports fully buried installation, which occupies negligible ground space and does not damage village landscape, hotel greening and hospital public environment. Treated effluent stably meets national and international first-class discharge standards, which can be reused for village green irrigation, hotel toilet flushing, hospital site cleaning and road sprinkling, realizing on-site water circulation. For remote residential villages and suburban hotels far away from urban sewage pipe networks, it eliminates huge long-distance pipe laying investment, lowers overall project investment by 30%-40% compared with centralized sewage projects.

In terms of low-carbon and stable operation, the equipment is equipped with energy-saving variable-frequency fans to reduce power consumption, and produces little excess sludge with low sludge disposal frequency. Customized deodorization modules can be added for hospital and downtown restaurant projects to avoid odor diffusion. With plug-and-play design, the modular assembly shortens on-site installation cycle to 3-7 working days. Certified with CE and ISO environmental qualification, this automatic customized sewage treatment system has become the preferred eco-friendly wastewater solution for global decentralized civilian and public service scenarios, balancing economic operation, treatment effect and ecological protection sustainably.