Wemac Other Wooden Box Multi Column Water Distiller for Injection

• Customization: Available
• Certification: ISO9001, RoHS
• Salt Rejection Rate: Other
• Model NO.: Purified Water System
• Application: Other
• Capacity: 300-1000
• Transport Package: Wooden Box
• Specification: other
• Trademark: wemac
• Origin: China
• HS Code: 84212199
• Production Capacity: 10000/H

Product Description

Purified water equipment

This system is commonly referred to as a multi-media filter or sand filter. The filtration medium consists of stratified quartz sand layers with varying particle sizes, where larger-diameter media are typically placed at the top of the filter. Water flows downward through progressively finer media layers.

Normally, the porosity of the media bed should enable the removal of particles as small as 10–40 μm. The primary function of the media bed is to filter out large particles, suspended solids, colloids, and sediment from the raw water, thereby reducing turbidity and its impact on the membrane system while lowering the SDI (Silt Density Index). The effluent quality should meet the following standards: turbidity <1 NTU and SDI <5, fulfilling the feedwater requirements for reverse osmosis systems.

Purified water equipment

Depending on raw water quality, a coagulant may sometimes be injected into the inlet pipeline to facilitate direct current coagulation. This process converts most suspended solids and colloids into micro-flocs, which are then trapped and removed by the multi-media filter layer.
As pressure differentials increase over time, accumulated particles can be removed through backwashing. Backwashing also helps reduce pressure within the filter. Typically, clean raw water is used for backwashing at a flow rate 3–10 times the design flow for approximately 30 minutes. After backwashing, a brief forward flush is performed in the operational flow direction to reset the media bed.
In most cases, vertical multistage pumps are used as backwash pumps.