System to retain rain and soiled water has a modular structure, which can be planted with wetland vegetation immersed or floating in water bodies with pipes linked to drains fitted with self-cleaning pigs

摘要

The system to retain rain water or soiled water is in a modular structure, for water management. It can be in a wide range in free dimensions as self-standing structures (1), superstructures, separate pipes (2), etc., to take and hold water from the drains. The system is initially filled from surface water, and water can be taken from the drains to augment it, and surplus water flows back into the drains. The modules can be immersed in natural or artificial water bodies, or float and be anchored at the bank. A pig can be used to separate the rain and soiled water, and clean the pipes. The module can be planted with wetland vegetation.