Advanced Water Recirculation and Purification System Technology

Introduction to Water Recirculation and Purification Technology

Maintaining clean and healthy water in aquatic environments is critical. The water recirculation and purification system employs advanced technology to ensure the water is continuously filtered and purified, eliminating issues such as foul odors, dead zones, and excessive algae growth. This system plays a pivotal role in sustaining vibrant and life-supporting water bodies.

1. Power System

The power system is the backbone of the water recirculation and purification process, ensuring efficient operation and energy supply to various system components.

  • Configuration:
    • The system is equipped with two submersible sewage pumps, one active and one on standby.
    • Specifications:
      • Power: 11 kW
      • Flow Rate: 90 m³/h
      • Head: 22 meters
  • Functions:
    • The power system not only drives the overall operation but also supports coarse filtration, physical filtration, and biological filtration.

2. Coarse Filtration System

The coarse filtration system serves as the preliminary defense against large particulates, safeguarding downstream filters from clogging and damage.

  • Functionality:
    • Removes larger debris and particulate matter.
    • Utilizes a single-bag filter with a flow capacity exceeding 90 m³/h.
    • Simplifies maintenance and operation.

3. Chemical Dosing System

This system administers specific chemicals to control algae growth and enhance the aggregation of particulates for easier removal.

  • Operation:
    • Chemicals are introduced intermittently to curb algae proliferation and facilitate flocculation.
    • These treatments are applied only when water quality declines or exhibits signs of degradation.

4. Combined Physical and Biological Filtration System

The integration of physical and biological filtration ensures comprehensive water purification by addressing both inorganic and organic pollutants.

  • Objectives:
    • Reduce inorganic suspended solids and manage phosphorous levels to control algae growth.
    • Preserve the micro-ecosystem while eliminating unwanted substances.

4.1 Biological Filtration System

The biological filtration system leverages cutting-edge technology to harmonize with the environment, utilizing bio-engineered substrates to cultivate beneficial microorganisms and algae.

  • Developer:
    • Innovated by Mr. Liu Jianting from Taiwan Hanou Aquatic Technology.
  • Mechanism:
    • Employs substrates that promote the growth of microorganisms, including plankton, protozoa, and fungi.
    • Achieves biological purification and control of pollutants in aquatic environments.

4.2 Biological Filter Bed

Key Component:
The biological filter bed is crucial, providing an extensive surface area for microorganisms to thrive and perform their purifying functions.

  • Structure:
    • Composed of biocompatible materials and water distribution pipelines.
    • Provides a vast attachment surface (up to 250 square meters per square meter of the product) for microbial colonization.
  • Role:
    • Supports the growth of bacteria, microorganisms, and algae, which convert and decompose harmful substances.
    • Operates similarly to natural systems where water passes through areas dense with aquatic plants and sediments, ensuring purification.

5. Outflow Assurance

Filtered water, enriched with beneficial microbes, is recirculated into the water body while waste is expelled, enhancing water quality.

  • Mechanism:
    • Residual algae and organic matter are trapped and decomposed.
    • Clean water is pumped back to the reservoir, maintaining ecological balance.
    • Backwash water containing concentrated residues is discharged to nearby waste water collection points.

6. System Installation and Operation

The system’s operational hub is underground, occupying a compact space of approximately 35 square meters with a depth of 4 meters.

  • Capacity:
    • Designed to process 90 cubic meters per hour.
    • Operates 10 hours a day, ensuring a full water cycle purification every two days.

7. Water Quality Standards

Implementing this sophisticated system guarantees the following water quality standards:

  • Clarity: Crystal clear water without visible algae.
  • Odor: Absence of unpleasant smells.
  • Purity: Elimination of suspended solids and maintenance of dissolved oxygen levels.


The Advanced Water Recirculation and Purification System represents a leap forward in maintaining aquatic health and water quality. By combining robust mechanical and biological processes, it addresses the challenges of modern water management, ensuring clear, odor-free, and ecologically balanced water bodies.

For more information on implementing such systems and enhancing water quality, contact us today.

Xi’an CHIWATEC Water Treatment Technology is a high-tech enterprise specialized in various water processing devices. Aside from these individual products, which cover a number of types and series, we can also help with related comprehensive engineering projects. Thanks to our hard work and dedication upon our founding, we are now one of the fastest-developing water treatment equipment manufacturers in Western China.

Further reading

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