Plasma Water Treatment Technology Services

BOC Sciences can treat water with low-temperature plasma water treatment technology, which includes high-pressure pulse discharge plasma water treatment technology and glow discharge plasma water treatment technology, which is the use of electrical discharge to produce plasma directly in aqueous solutions or the introduction of active particles in gas discharge plasma into water, which can cause complete oxidation and decomposition of pollutants in water.

• Why Choose Plasma Water Treatment Technology

The direct pulse discharge in aqueous solution without the addition of catalysts can be carried out under normal temperature and pressure conditions, which can oxidize and degrade organic compounds in aqueous solution. The reactor form with industrial wastewater treatment pulsed discharge plasma water treatment technology can be flexibly adjusted, the operation process is simple.

Fig. 1 Plasma technologies for the water pollutant degradation. ^[1]

Principle of Plasma Technology

Low-temperature plasma wastewater treatment technology is a wastewater treatment technology that combines the effects of high-energy electron radiation, ozone oxidation and ultraviolet photolysis.

When the aboved methods work together, the plasma is chemically reactive and is composed of particles such as electrons, positive and negative ions, excited atoms, molecules and free radicals. Free radicals can react with pollutants in wastewater without any selection and oxidize them directly to CO₂, water or salt without secondary pollution, which is an energy-efficient wastewater treatment technology. The plasma radical oxidation reaction is a wet oxidation reaction of water, which is based on the principle that water reacts with oxygen to produce strong oxidizing radicals with the participation of external conditions, and then oxidizing radicals reacts with organic matter in water to produce CO₂ and remove the organic matter.

Wastewater Treatment Process Development

1. Technology indicators

The composition of wastewater is extremely complex, and it is difficult to express its properties by a single indicator. The most commonly used indicators are biochemical oxygen demand (BOD) and chemical oxygen demand (COD), which are comprehensive indicators of organic pollutants that consume dissolved oxygen in water, and toxic substances that are usually not contained in domestic wastewater.

2. Process flow establishment

The pulsed power supply liquid in discharge wastewater treatment system consists of several parts such as plasma generation and free radical injection system, high efficiency mass transfer reactor, odor purification, etc., forming an integration of wastewater pollutant degradation, disinfection sterilization and odor purification. The air compressor bubbles the compressed air through the microporous aeration supply system to the wastewater, providing high-intensity gas-liquid mass transfer, and quickly completes the degradation of organic matter, disinfection and sterilization under the action of the discharge plasma free radicals. The exhaust gas escaping from the water surface is collected by the air collection system and purified and discharged after the discharge plasma oxidation and deodorization. Experiments are conducted to measure the water quality indexes before and after the treatment of specific wastewater, and to evaluate the treatment capacity, effectiveness, energy consumption, influencing factors and economics of the treatment system.

As a professional water treatment specialist, we can provide you with a variety of water treatment technologies for water quality treatment. If you want our technology, feel free to contact us and we will provide you with customized solutions.