Tech & Tools

Technical information

pH neutralizer

The pH neutralizer literally adjusts acidic _and alkaline solutions _and wastewater to the neutral range [water supply standard: pH 5.8 to 8.6]. The pH value of the treated raw water is measured with a pH electrode, _and a neutralizing chemical is injected according to the value. We have three types of pH neutralizers: “TPC type continuous neutralizer”, “LPC type batch neutralizer”, _and “CPC type carbon dioxide gas neutralizer”.

<TPC type continuous neutralizer>
It is a general neutralizer. It neutralizes while passing raw water, _and continuously discharges treated water. If the pH value is in the range of 4 to 11, treatment in one tank is possible, but if it exceeds that, two tanks [or three tanks] will be provided, _and rough adjustment will be performed in the first stage _and fine adjustment will be performed in the second stage.

<LPC type batch neutralizer>
Whereas TPC is a system that continuously adjusts the pH of raw water to drain water, the LPC type once receives a certain amount of raw water into the tank, neutralizes the pH without discharging it, _and puts it in the neutral range. The automatic valve at the bottom of the tank is opened _and automatically discharged. Neutralization can be done in about 3 to 4 hours per treatment.

<CPC type carbon dioxide neutralizer>
Sulfuric acid, hydrochloric acid, _and caustic soda are mainly used as neutralizing chemicals for both TPC _and LPC, but if you do not want to use these chemicals [the chemicals cannot be transported, the equipment itself moves a lot, _and it is dangerous. A carbon dioxide neutralizer is used for cases such as the inability to use expensive chemicals. However, since carbon dioxide reacts with water _and becomes acidic, only alkaline raw water [up to pH 12] is treated.

  • TPC型
  • LPC型
  • CPC型


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