Industrial sector

Industrial sector

Water treatment

For today’s increasingly developed social life, the need to use clean and safe water is always an essential and top concern. For businesses, the supply of clean water will help them produce clean products, directly affecting the quality of the product as well as the people who use it. In today’s article, let’s learn about the water treatment process as well as the sludge press equipment in the current water treatment system with Hitachi Filter Press Company.


As we all know, currently in water supply systems, we mainly use river water and groundwater. This amount of water must be treated extremely carefully, the water sources themselves are not guaranteed to be safe to use.

The source of water treatment is river water

Live water, after being pumped to the storage tank, will flow through the coarse screen (garbage comber) and then it will be pumped through the pre-settlement system to remove impurities mixed in the water source.

The water will then be pumped through the reservoir, which is responsible for storing water to provide a well-functioning supply water treatment system, avoiding water scarcity or river water problems with contamination. . Usually, the storage tanks have a large capacity to ensure that they can supply enough water for the plant to operate.

The water after the source tank is pumped into the mixing tank – flocculation, the coagulants include PAC wiper code 001, polymer flocculation aid, Chinese soda ash from Taiwan. The process for chemicals is as follows: Caustic soda is injected first to raise the pH to the threshold of 8, then PAC is added quantitatively and stirred quickly to create good conditions for the reaction between PACs to treat feed water. With the waste in the water forming flocculation, this mixture of water and chemicals flows to the flocculation tank, where the polymer is added to increase the reaction efficiency and make the floc size grow large enough to win. gravity of the earth and settle to the bottom of the tank.

The water after the settling tank will continue and continue to flow through the slow filter or pressure filter to filter the residues formed from the previous treatment works. The water after passing through the filter tank is stored in the storage tank and disinfected before being used for further purposes.

Advantages of technology

The process takes place completely automatically, the water quality after treatment ensures the set standards.

  • Can reserve water when the water source has problems
  • Maximum cost savings compared to other technologies.
  • Treatment of water supply is ground water

Besides river water, currently we also use underground water, drilled wells will be drilled with appropriate depth to get clean aquifers. Groundwater is often turbid, low dissolved oxygen concentration, low TDS, so there is a high possibility of alum and iron contamination. Therefore, treating water supplied with groundwater is also one of the extremely important steps to create quality water.


Currently, at water plants, the application of advanced sludge press technology helps businesses to reduce the time and effort of workers. The mud press is an extremely effective alternative to traditional mud drying methods, avoiding environmental pollution.

There are many types of sludge presses used by investors to treat wastewater sludge. However, according to the evaluation of many investors and experts, the plate frame mud press is an extremely suitable device for pressing sewage sludge.

Process of treating sewage sludge

Step 1: Primary treatment

Step 2: The water is conditioned through the sand settling tank

Step 3: Chemical treatment, aeration

Step 4: Chlorination

Step 5: flocculation and flocculation

Step 6: Mud Mausoleum

Step 7: Filter and absorb odors

Using a plate-frame slurry press to treat sewage sludge

The plate frame mud press is one of the most widely used mud presses in Vietnam. This is an extremely efficient sludge dewatering device. As for the feed water treatment systems, because of the extremely large amount of sludge, many of these systems require a large capacity sludge dewatering machine, the ability to continuously squeeze the sludge and produce dry batches of sludge, thereby reducing sludge treatment costs significantly.

The mud press machine presses the sludge thanks to the filter pressure, each batch of pressed sludge takes 2-3 hours. The sludge after pressing reaches a low moisture content of 30-65%. The slurry press does not need polymer flocculants, so it is highly appreciated for its ability to squeeze the sludge and does not require much operating costs for the machine.

Currently, there are many water treatment systems in Vietnam that are very popular with the Hitachi series of mud presses. This is one of the largest mud press brands in Vietnam, which is loved and appreciated by many customers for its quality.

Hitachi mud press has received ISO 9001:2015 quality certification. The machine is made by good engineers, closed production system. Currently, Hitachi Filter Press Company produces mud presses with a variety of capacities, quick production time, and 12 months warranty.

Besides, Hitachi Filter Press Company also has a line of conveyor mud presses and multi-disc screw presses for customers to choose from. If you have any need for advice on a sludge dewatering machine, please contact us via Hotline: 0274 626 8087.

Hotline: 0931 777 202
The Factory: Road DH 619, Long Nguyen Commune, Bau Bang District, Binh Duong
Southern Office: 135C My Phuoc Tan Van Street, An Phu Ward, City. Thuan An, Binh Duong
Northern Office: 9th Floor, Minori Building, No. 67A Truong Dinh Street, Truong Dinh Ward, Hai Ba Trung District, Hanoi City
Central Office: 20th Floor, Indochina Riverside Towers, No. 74 Bach Dang Street, Hai Chau District, Da Nang