Q-Center500-RV Central Pure Water System at the University of Macau

Implementation Plan

• Central preparation system: equipped with Q-Center500-RV central pure water system, using municipal tap water as the inlet, with a production capacity of 500 liters/hour, to prepare pure water that meets the GB6682-2008 first level water standard, which is transported to each floor through a circular pipeline.
• Floor Loop Design: Install circular circulation pipelines on each floor, equipped with constant pressure water supply systems and UV sterilization devices, to ensure that the water quality in the pipeline network is always fresh and stable, and to avoid bacterial growth in stagnant water sections. Multiple water intake points are set up on each floor to meet the nearby water intake needs of different laboratories.
• On demand water intake terminal: Intelligent water intake handles are configured in each laboratory, supporting functions such as quantitative water intake, real-time water quality display, and card swiping records, making it convenient for teaching experiments and data tracing.
• Intelligent management system: equipped with an IoT remote monitoring platform, real-time monitoring of the central system and pipeline operation status, supporting functions such as mobile phone alarm, water usage statistics, cost accounting, etc.

Implementation results

• The level of teaching guarantee has been greatly improved: after the system is put into operation, the water quality at each water intake point has stabilized to a resistivity of>10M Ω· cm (pure water) and 18.25M Ω· cm (terminal ultrapure water), with microorganisms<1cfu/ml, completely eliminating problems such as abnormal experimental phenomena and data deviations caused by water quality issues. The teaching effectiveness of interdisciplinary experiments such as biomedicine, environmental monitoring, and material analysis has significantly improved, with a success rate increase of about 15%.
• Management efficiency and economic benefits are highlighted: the rate of equipment damage caused by human error has significantly decreased: after centralized management, each laboratory no longer needs to operate and maintain equipment on its own, and failures caused by human error have been reduced by more than 90%. Significant cost reduction: Centralized procurement and specialized maintenance have reduced the average annual consumables and maintenance costs by at least 40% compared to the decentralized model, saving over MOP 150000 in annual expenses. Refined management: The water statistics system provides accurate data decision-making basis for the cost accounting and resource allocation of experimental teaching in schools, realizing the visualization of water consumption in various departments and the rationalization of cost allocation.
• Safety and demonstration effect: Since the operation of the system, there have been no water leakage or water quality safety accidents, and the safety measures have been highly recognized by the school. The project has become a model project for upgrading laboratory infrastructure in Macau universities, and has received visits and learning from multiple sister universities, establishing a good brand reputation for Qiqin in the Guangdong Hong Kong Macao Greater Bay Area.

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