Comprehensive introduction of integrated container sewage treatment equipment
Container integrated sewage treatment equipment is a highly integrated equipment that combines mature sewage treatment process (AO/MBR) with standard container structure. It is especially suitable for small and medium-sized decentralized sewage treatment scenes.
Detailed explanation of core treatment process
AO process (anaerobic-aerobic)
Stage A-Anaerobic process: Its main function is denitrification. Under anaerobic conditions, anaerobic bacteria transform organic nitrogen in sewage into ammonia nitrogen, and then through denitrification, the returned nitrate nitrogen is transformed into nitrogen and released into the air, thus removing total nitrogen.
O-stage aerobic process: Its main function is to remove organic matter (BOD/COD) and nitrification. Under aeration conditions, aerobic microorganisms decompose and consume organic pollutants; At the same time, nitrifying bacteria transform ammonia nitrogen into nitrate nitrogen.
Features: Mature process, low operating cost, effective nitrogen and phosphorus removal (can be upgraded to AO process). The effluent quality is stable, which can reach the first-class B or first-class A standard in the Discharge Standard of Pollutants for Urban Sewage Treatment Plants.
AO+MBR process (anaerobic-aerobic+membrane bioreactor)
This is based on the AO process, which replaces the traditional secondary sedimentation tank with a membrane separation unit.
The core function of MBR membrane:
Efficient solid-liquid separation: the pore size of the membrane is extremely small (usually 0.1-0.4 micron), which can intercept almost 100% suspended solids and bacteria, and the effluent is clear, with extremely low suspended solids and turbidity.
High-concentration activated sludge: membrane interception can maintain a high microbial concentration in the reactor, greatly improve the treatment efficiency and occupy a smaller area.
Excellent effluent quality: the effluent quality can reach the first-class A standard or even higher, and can be directly used for greening, washing and other recycling purposes.
Features: the effluent quality is better, the floor space is smaller, and the impact load resistance is strong. But it increases the cost of membrane module and the cost of periodic cleaning/replacement.
Summary of outstanding advantages
The effluent meets the standard stably, and the treatment effect is good;
Mature and reliable technology, strong impact load resistance.
The introduction of MBR technology ensures the excellent and stable quality of effluent, especially the removal effect of suspended solids, bacteria and viruses is incomparable with traditional technology.
Small floor space and high degree of integration;
All the processing units are compactly integrated in one or more standard containers, and there is no need to build huge concrete structures.
It is especially suitable for projects with limited site, difficult demolition or rapid deployment.
Can realize unattended:
High automation: the equipment is equipped with PLC automatic control system, which can realize the automatic start and stop of pumps, fans, valves, etc. and the automatic switching of processes.
Remote monitoring: Internet of Things technology is supported, and the operation and maintenance personnel can remotely monitor the running status, water quality parameters and alarm information of the equipment through the computer or mobile APP, so as to realize the operation and maintenance mode of "unattended and regular inspection".
Rapid deployment and short construction period: the equipment is prefabricated in the factory, and only foundation leveling, hoisting in place and pipeline docking are needed on site, which greatly shortens the construction time (usually only a few days to weeks).
Flexibility and mobility: the standard container design is convenient for transportation. If the project site changes, the equipment can be moved as a whole and reused, thus avoiding the waste of investment.
Small environmental impact: all buried, semi-buried or above-ground installation can be done. After buried, the top can be covered with soil for greening, which is in harmony with the environment.
Typical application scenarios
Rural and township domestic sewage treatment
Tourist attractions and resorts
High-speed service area, construction site camp
Small factories, mines, oil fields
Emergency sewage treatment (eg after natural disasters)
Scattered villas, schools, military camps
Container integrated sewage treatment equipment (AO/AO+MBR process) represents the mainstream and development direction in the field of decentralized sewage treatment. It successfully combines efficient and stable treatment effect, compact floor space and intelligent operation and maintenance management, providing customers with a "plug and play", worry-free and land-saving comprehensive solution, which is an ideal choice to solve the water pollution problem in non-centralized areas.
