In fields with extremely strict environmental requirements, such as medical pharmaceuticals and semiconductor manufacturing, cleanrooms are the core spaces that ensure the smooth progress of production and scientific research. The water supply and drainage systems, as the indispensable "vital veins" in cleanrooms, may seem ordinary at first glance but play a crucial role in maintaining a clean environment and guaranteeing technological processes. As Guangzhou Cleanroom Construction Co., Ltd., which has years of experience in cleanroom engineering, let us unveil the mysteries of cleanroom water supply and drainage systems today.

Water Supply and Drainage in Cleanrooms: System Construction under Special Requirements

Different from the water supply and drainage systems in ordinary buildings, the design and construction of those in cleanrooms must adhere to the core principles of "cleanliness, pollution prevention, and leakage prevention." Here, the introduction and discharge of every drop of water are related to the environmental quality of the entire clean space.

In terms of water supply, cleanrooms have extremely high requirements for water quality. Ordinary tap water cannot meet the needs. Water must go through multiple - stage filtration, reverse osmosis, ion exchange, and other advanced treatment processes to remove particulate impurities, microorganisms, ions, and other pollutants in the water, ensuring that the supplied water reaches the ultra - pure water standard. This is to avoid affecting the production process and product quality. For example, in the semiconductor chip manufacturing process, even trace amounts of impurities can lead to a decline in chip performance or even product failure.

The drainage process is equally important. The wastewater generated in cleanrooms often contains chemical reagents, microorganisms, and other pollutants. If discharged directly, it will not only pollute the environment but may also seep back into the cleanroom through the drainage pipes, damaging the clean environment inside. Therefore, cleanroom drainage systems need to have strict functions such as backflow prevention, odor prevention, and microorganism growth prevention. At the same time, wastewater should be collected and pre - treated separately to ensure compliance with discharge standards.

Key Facilities: Ensuring the Efficient Operation of the System

Water Supply Equipment

• Purified Water Equipment: This is the "heart" of the cleanroom water supply system. Through a series of complex water treatment processes, it converts raw water into purified water or ultra - pure water that meets the requirements. Core components of the equipment, such as filter elements and reverse osmosis membranes, need to be replaced and maintained regularly to ensure the stability of the effluent quality.
• Circulating Water Supply System: To prevent the growth of microorganisms due to long - term stagnation of water in the pipes, cleanrooms usually adopt a circulating water supply mode. The water in the pipes is always kept in a flowing state, and regular disinfection devices, such as ultraviolet sterilization and ozone disinfection, are installed to ensure water supply safety.
• Water Outlet Devices: The water outlets in cleanrooms, such as sinks and cleaning equipment interfaces, all adopt special designs. Most faucets are touchless to avoid contamination caused by human contact; backflow prevention devices are installed at the interfaces to prevent wastewater from flowing back into the water supply pipes.

Drainage Equipment

• Drainage Pipes: Cleanroom drainage pipes generally use corrosion - resistant materials with smooth inner walls, such as stainless steel and polypropylene (PP), to reduce dirt adhesion and microorganism growth. The slope of the pipes is designed strictly to ensure that wastewater can be discharged quickly and smoothly, avoiding water accumulation.
• Floor Drains: Floor drains are a crucial but often overlooked part of the cleanroom drainage system. Ordinary floor drains are prone to accumulating dirt and becoming a breeding ground for microorganisms. Special floor drains for cleanrooms adopt a sealed design, with water traps and odor - proof devices. This can not only prevent odors from escaping but also effectively block the entry of bacteria and pests into the cleanroom.
• Wastewater Treatment Devices: Cleanrooms are equipped with corresponding pre - treatment devices for different types of wastewater. For example, for wastewater containing acids and alkalis, the pH value is adjusted through neutralization reactions; for wastewater containing organic solvents, methods such as distillation and adsorption are used for separation and recovery, minimizing the impact on the environment.

Guangzhou Cleanroom Construction Co., Ltd.: Crafting High - Quality Water Supply and Drainage Systems with Ingenuity

In the construction of cleanroom water supply and drainage systems, Guangzhou Cleanroom Construction Co., Ltd. provides customers with one - stop solutions with its rich experience and professional technical team. From preliminary scheme design and equipment selection, to mid - stage construction, installation, and commissioning, and then to post - stage maintenance, we strictly control every link to ensure the reliability and stability of the water supply and drainage systems.

In a cleanroom project for a well - known pharmaceutical enterprise, we designed and installed a high - standard purified water supply system and wastewater treatment system according to the special water quality requirements of its production process. The water supply system adopted the advanced double - pass reverse osmosis + EDI (Electrodeionization) technology, and the effluent quality reached the injection water standard specified in the pharmacopoeia. For the drug - containing wastewater, acid - base wastewater, and other types of wastewater generated during the pharmaceutical production process, the drainage system was equipped with dedicated collection and treatment devices to ensure that the wastewater was discharged up to standard. After the project delivery, the water supply and drainage system operated stably, winning high praise from the customer and effectively guaranteeing the quality and safety of pharmaceutical production.

The water supply and drainage systems in cleanrooms, though not eye - catching, silently support the normal operation of the entire clean space. Guangzhou Cleanroom Construction Co., Ltd. will continue to uphold the attitude of professionalism and focus, constantly optimize the solutions for cleanroom water supply and drainage systems, and create a more high - quality and reliable clean environment for customers. If you have any requirements related to cleanroom engineering, please feel free to contact us. Let's work together to create a clean future!