Tips For Selecting The Valve For Medical Wastewater Treatment

Since the 20th century, the rapid development of pharmaceutical industry has brought a leap to human civilization and solved many plague problems. At the same time, the wastewater discharged from its production process has caused pollution to the environment, affecting human life as well as health.

What Is Medical Wastewater?

Hospital wastewater contains three major categories of pollutants, one of which is pathogenic microorganisms, the other is toxic and harmful physicochemical pollutants, and the third is radioactive pollutants. These medical wastewaters have complex composition, high concentration and salinity, high chromaticity and toxicity, and contain a wide variety of organic pollutants, many of which are difficult to biochemically degrade and can remain in the environment for a considerable period of time. Therefore, the treatment of medical wastewater is urgent and we must solve it in order to guarantee the safety and health of human living environment.

How To Treat Medical Wastewater?

For the treatment of medical wastewater, biological oxidation method and disinfection process are mainly used for treatment at present.

● The traditional biological oxidation method mainly includes biological contact oxidation method, biological carousel method, tower biofilter method, jet aeration method, oxidation ditch method and biofilm (MBR) bioreactor method.

● Disinfection process mainly includes chemical disinfection and physical disinfection process. The chemical disinfection process is specifically liquid chlorine, chlorine dioxide, sodium hypochlorite and ozone. The physical disinfection process is mainly UV disinfection.

Valves, pipes, pumps, flow meters, membranes, tanks and other industrial components can be assembled into an efficient medical wastewater treatment system. Valves play a role in transmitting and regulating the flow. Depending on the capacity or purification effect, a signal is input to the control system to adjust the opening and closing angle of the valve, thus achieving fluid automation. Thus, valves can help medical wastewater treatment systems to accomplish the purpose of water purification and complete the task efficiently.

Types Of Valves For Medical Wastewater Treatment

Considering that medical wastewater contains all kinds of corrosive or toxic substances, we suggest choosing the right valve material according to the process. Valves are available in stainless steel, biaxial steel, carbon steel, cast iron, UPVC, PTFE, PVDF and other materials to meet fluid control requirements.

Shut-off Valves

Shut-off valves are valves used for flow and cut-off. Their advantages are simple operation, easy installation and low leakage. Shut-off valves are generally available as ball, butterfly, gate and globe valves. Meanwhile, shut-off valves can work with electric actuators or pneumatic actuators to achieve remote control purposes.

Control Valves

A control valve is an industrial valve used to regulate the flow and pressure of a pipeline. It receives and feeds back signals through positioners or electric actuators to achieve precise flow regulation. According to the driving method, control valves are divided into pneumatic control valves and electric control valves.

Check Valves

Check valve is a valve that relies on the internal pressure of the pipeline to open or close automatically. Check valves can effectively prevent the backflow of media to protect the safety of pumps, flow meters and other electrical equipment, so that the whole pipeline operation is safe and smooth.


Y-Strainer contains a strainer, which can help filter solid impurities inside the pipeline as well as help extend the life of pumps, valves, flow meters and other industrial fittings, reducing maintenance costs.

These are the 4 types of valves that can be used in medical wastewater treatment systems. Choosing a suitable valve can make the system run more smoothly. We hope this article will help you in valve selection. Any demand for valve, feel free to consult us at