Container House Circulating Water System
The circulating water system of container houses mainly achieves efficient water resource recycling through greywater recycling and rainwater harvesting. Its core design focuses on reducing freshwater consumption and improving resource utilization, and can be divided into the following two types of systems:
1. Greywater Recycling System
Greywater refers to lightly polluted wastewater generated in household life, such as drainage from showers, washing up, and laundry. The greywater recycling system in container houses collects such wastewater through pipes, which then undergoes preliminary sedimentation before entering a filtration unit. The filtration process typically employs multi-layer physical filtration (such as sand and gravel, activated carbon) or biofilm treatment technology to remove suspended solids, organic matter, and some microorganisms. The treated water quality can meet non-potable water standards and is then transported to a storage tank for backup use.
Application Scenarios: The treated greywater is mainly used for toilet flushing or irrigation. For example, the water supply to toilets in container houses can be switched to greywater pipes, reducing reliance on clean freshwater; if there are green areas around the house, greywater can also nourish plants through a drip irrigation system, forming an ecological closed loop.
Advantages: This system has a simple structure, low cost, and can directly reduce household water consumption by 30%-50%, making it suitable for scenarios with limited resources or temporary residences.
2. Rainwater Harvesting System
The roofs of container houses are usually designed as sloped or flat structures to facilitate rainwater collection. Rainwater flows through guide channels into an initial abandonment device, which automatically discharges the first 2-3 minutes of heavily polluted rainwater (such as leaves and dust), with the remaining clean rainwater entering the storage tank. The storage tank can be equipped with a UV disinfection module or chlorine tablets can be added to further kill pathogens and ensure water quality safety.
Application Scenarios: The treated rainwater can be used for non-contact water scenarios, such as pre-rinsing in container shower rooms, floor cleaning, or landscape water replenishment. Some designs also link the rainwater and greywater systems to form a multi-stage utilization system.
Advantages: As a free resource, rainwater harvesting systems can significantly reduce reliance on municipal water supplies, especially in areas with abundant rainfall, meeting 20%-40% of the house's water demand.
System Integration and Expandability
The circulating water system of container houses often adopts a modular design, facilitating the addition or removal of functions according to needs. For example, a reverse osmosis unit can be added to purify greywater or rainwater into drinking water, or an intelligent monitoring module can be installed to display water quality parameters in real time. In addition, the system pipes are mostly laid out in a concealed manner, seamlessly integrating with the container structure, saving space and being aesthetically pleasing and practical.
Environmental Significance: Such systems effectively reduce ecological loads by reducing sewage discharge and freshwater extraction, aligning with sustainable building concepts, and are particularly suitable for remote areas, post-disaster reconstruction, or temporary camps.
