2 yuan/ton cost - Qatar factory integrated MBR equipment water reuse project

Project Introduction

1、 Project background: Water resource challenges in the desert

Qatar is located in a tropical desert climate zone, with high temperatures and dryness throughout the year, an average annual precipitation of less than 100 millimeters, and extremely scarce freshwater resources. As an important energy and industrial country in the Middle East, Qatar has a high degree of dependence on water resources. Industrial production and residential water mainly rely on seawater desalination, which is costly and consumes a huge amount of energy.
In this context, a factory in Qatar is facing a severe demand for sewage treatment: traditional treatment methods are unable to meet increasingly strict environmental standards, and the treated water cannot be directly reused, resulting in resource waste. The factory urgently needs an efficient, stable, and low-energy sewage treatment system to achieve the dual goals of meeting wastewater discharge standards and reusing reclaimed water.

2、 Project Overview

Project Name:	Qatar Integrated MBR Domestic Sewage Treatment Equipment
Project type:	Sewage Treatment
Project location	Qatar
Project start date	July 2017
Project delivery time	July 2017
Project Phase	Delivered and running stably

3、 Solution: Integrated MBR processing technology

In response to the special environment of high temperature, high salinity, and water shortage in Qatar, the project adopts an integrated MBR (membrane bioreactor) domestic sewage treatment equipment, model MBR-535-15 (equipped with 10 curtain membrane components), with a daily processing capacity of 50 tons/day (50TPD).
Technical advantages:

Efficient solid-liquid separation: MBR membrane pore size is less than 0.1 microns, which can efficiently intercept suspended solids, bacteria, and large molecular organic matter. The effluent water quality is clear, with a turbidity of less than 1NTU, far superior to traditional activated sludge process.
Small footprint: Integrated design, high integration, suitable for factory areas with limited space, no need to build large sedimentation tanks.
Strong resistance to impact loads: Adapt to fluctuations in factory drainage water quality and ensure stable system operation.
High degree of automation: PLC intelligent control, remote monitoring, reducing manual intervention, suitable for unmanned operation in high temperature environments.
Salt and high temperature resistant design: The equipment materials are selected to be corrosion-resistant and UV resistant, suitable for Qatar's extreme climate of up to 50 ℃ in summer.

4、 Water production efficiency and utilization methods

Sample Name Testing Items	Raw water (regulating tank)	Water production (sampling valve）	Water production (discharge outlet)
Appearance	Grey turbidity	Colorless transparent	Colorless transparent
PH (dimensionless)	7.3	7.2	7.2
COD(mg/L)	350	49.6	58.5
Ammonia nitrogen (mg/L)	40	5.4	4.6
Total phosphorus (mg/L)	2.0	0.2	0.1

The treated effluent meets the Middle East standard for reclaimed water reuse (Qatar General Electricity&Water Corporation, Kahramaa standard) and is widely used in the following scenarios:
Green irrigation: used for sprinkler irrigation in factory parks and surrounding green belts, significantly reducing freshwater consumption.
Landscape water replenishment: Supplement artificial lakes, fountains and other landscape water bodies to enhance the ecological environment of the factory area.
Road cleaning and dust reduction: Replace tap water for road flushing and construction dust reduction in the factory area, saving high-quality water resources.
Cooling system makeup water: Some water quality can be further treated and used for industrial cooling systems, achieving cascade utilization.
By reusing reclaimed water, the factory can save over 18000 tons of fresh water annually. Calculated based on local water prices, the annual water cost savings exceed $100000, with an investment payback period of less than 3 years.

5、 Operating costs and environmental benefits

The cost of water treatment per ton is 1.8-2.0 yuan/ton (approximately 0.25-0.28 US dollars/ton), significantly lower than the local cost of seawater desalination (approximately 0.8-1.2 US dollars/ton).
Relieve water resource pressure: reduce reliance on groundwater and seawater desalination, and contribute to national water resource security.
Reduce carbon emissions: Compared to seawater desalination, MBR process reduces carbon footprint by more than 60%, supporting Qatar's sustainable development goals in the "2030 National Vision".
Enhancing corporate image: The factory has obtained green production certification, enhancing international competitiveness and aligning with ESG (environmental, social, governance) investment trends.
Demonstration effect: The project has become a benchmark case for water reuse in Qatar's industrial parks, promoting more enterprises to adopt circular economy models.

6、 Conclusion

This project successfully applied advanced MBR technology to industrial wastewater treatment in extreme environments in Qatar, not only solving the problem of factory discharge, but also achieving the transformation of "wastewater resources", providing a replicable solution for sustainable management of water resources in arid areas. In the future, as Qatar prepares for the 2030 World Cup and promotes large-scale infrastructure, such distributed, intelligent, and low-energy sewage treatment systems will play a greater role in cities and industrial areas, helping the "desert country" move towards a green future.

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