Reclaimed water reuse system

NegotiableUpdate on 02/05

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The water quality of the reclaimed water reuse system is stable and meets the standard: through RO membrane and multi-stage disinfection, it ensures that indicators such as heavy metals and microorganisms are better than conventional tap water.

Product Details

1Reclaimed water reuse systemTypical processing flow

Raw water (sewage/wastewater/RO concentrate)

↓

Flocculation sedimentation tank → multi-media filtration → activated carbon filtration → ultrafiltration → RO system → disinfection → finished water (tap water grade)

2、 Core process of the system

1. Preprocessing stage

Flocculation and sedimentation:

Add polyaluminum chloride (PAC) and polyacrylamide (PAM) to form flocs through coagulation reaction, removing suspended solids (SS), colloids, and some organic matter.

SS ≤ 50mg/L after precipitation

COD≤200mg/L。

Multi media filter:

Quartz sand+smokeless coal+magnetite filter material, further removing fine particles and reducing turbidity to ≤ 5NTU.

Activated carbon filter:

Absorb organic matter, residual chlorine, color and odor, improve water quality and taste.

2. Deep processing stage

Ultrafiltration (UF):

0.01-0.1 μ m hollow fiber membrane, capable of intercepting bacteria, viruses, and large organic molecules, with water turbidity ≤ 0.5NTU and SDI ≤ 3.

Reverse osmosis (RO):

Under high pressure drive, the RO membrane (desalination rate ≥ 97%) removes inorganic salts, heavy metals, and microorganisms, and the conductivity of the produced water is ≤ 10 μ S/cm, meeting the standard for purified water.

3. Post processing stage

UV+ozone combined disinfection:

Ultraviolet (UV) radiation destroys microbial DNA, while ozone (O3) oxidizes residual organic matter and sterilizes, ensuring a total bacterial count of ≤ 100 CFU/mL.

3、 Comparison of water quality indicators

indicator	Inlet water quality (example)	Outlet water quality (standard for tap water)
Turbidity (NTU)	≤50	≤1.0
COD（mg/L）	≤500	≤30
Ammonia nitrogen (mg/L)	≤50	≤0.5
Total hardness (calculated as CaCO3)	≤800	≤450
Conductivity (μ S/cm)	≤3000	≤ 1000 (municipal tap water)
Total colony count (CFU/mL)	≤10⁶	≤100

4Reclaimed water reuse systemadvantage

1. Stable and up to standard water quality: Through RO membrane and multi-stage disinfection, ensure that indicators such as heavy metals and microorganisms are superior to conventional tap water.

2. High recovery rate: RO concentrated water can be refluxed to the pretreatment system, with a total water recovery rate of ≥ 85%.

3. Modular design: The processing capacity can be flexibly configured from 10m ³/d to 1000m ³/d to adapt to different scenarios.

4. Intelligent operation and maintenance:

Real time feedback on online water quality monitoring (pH, conductivity, residual chlorine, etc.).

Automatic chemical cleaning (CIP) of membrane components to extend their service life.

5、 Applicable scenarios

Industrial water: pure water preparation for electronic plants, boiler feedwater.

Municipal water supply: Supplement drinking water in water scarce areas and ensure emergency water supply.

Commercial project: Hotel direct drinking water, scenic area circulating water system.

RO concentrated water reuse: The concentrated water in the reverse osmosis system is reprocessed to reduce wastewater discharge.

6、 Policies and Cases

Policy support: The national "14th Five Year Plan" for the development of urban sewage treatment and resource utilization encourages "quality and grading reuse", and some provinces and cities provide a 30% equipment subsidy for high-quality reuse projects.