Shallow Sand Filter

Introduction

Shallow sand filters are most efficient for the filtration of water heavily contaminated with algae, organic matter and other impurities, such as in open reservoirs and recycled water systems.

Shallow sand filters consist of one or more filtration units. Water enters the filter via the inlet located on top of tank and spreads evenly on the media. Dirt particles and organic materials are trapped on the media surface. The clean water percolates through the media and flows out via the outlet located on bottom of tank. The cleaning backwash process is done by shutting the inlet of the filter and allowing water to enter from the bottom, lifting the media and releasing the dirt particles through the top drain pipe. This process can be controlled automatically.

Features

1. High filtration speed and low pressure loss.

2. Modular setting, small footprint, less piping, and low investment.

3. Manual, semi-automatic and fully-automatic backwash options are available to fully meet your needs.

4. The backwash water source can be selected from the internal system, water tower or external water source.

5. Multiple units can be combined, and the processing flow can be expanded arbitrarily.

6. The shell and pipes are made of carbon steel or stainless steel.

7. The core components are imported original (BERMAD, BACCARA, SIEMEN, MITSUBISHI).

8. The filter unit adopts a single-chamber design, which has better backwashing effect and lower sand runoff rate.

9. The water collector can be made of stainless steel/ABS and has a longer life.

10. The water outlet pipe is set at the bottom of the unit, with smaller water resistance and easier maintenance.

Structure & Drawing

Application

Raw water treatment

Cooling water treatment

Paper industry

Textile industry

Power industry

Agricultural irrigation

Two Tanks Parallel Shallow Sand Filter

Flow Rate(m³/h): 8 – 380

Tank Material: Carbon steel, stainless steel, carbon steel rubber lining

Three Tanks Parallel Shallow Sand Filter

Flow Rate(m³/h): 12 – 570

Tank Material: Carbon steel, stainless steel, carbon steel rubber lining

Four Tanks Parallel Shallow Sand Filter

Flow Rate(m³/h): 16 – 760

Tank Material: Carbon steel, stainless steel, carbon steel rubber lining