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Submerged Combustion System

  • Combustion and melting technology
  • Concentration, acid, distillation technology

Submerged Combustion System

Features

・TSKE is enjoying top share in the field.
・Can be reduce the risk of public nuisance.
・The complete decomposition of the organic substances in the liquid waste is achieved regardless of kind or character of the liquid waste.

Thermal Oxidizer

  • Combustion and melting technology
  • Concentration, acid, distillation technology

Thermal Oxidizer

Catalytic WAO Effluent Water Treatment System

  • Reaction and reforming technology

Catalytic WAO Effluent Water Treatment System

Features

・Combustion is not applied, requiring no fuel, and exhaust gas does not include NOx, SOx, and dioxins.
・No secondary waste such as excess sludge as in biotreatment is generated. The system is applied to wastewater that is difficult to handle through biotreatment.

BMB Stripper

  • Absorption and adsorption technology

BMB Stripper

Distillation effectively removes low level of VOCs in water, but large amount of steam energy is required. With the BMB stripper, steam energy consumption can be reduced by bringing the gas flow closer to the plug flow.
VOCs in water are removed by conventional aeration by releasing them into the air to prevent water contamination. Distillation method is effective for removing small levels of VOCs in water. However, large amounts of steam and energy are required for conventional methods because reducing the amount of steam causes the downward liquid to mix with the upward steam flow, so concentration becomes vertically uniform to the tower, disabling direction control/countercurrent flow of liquid and gas.
However with the BMB stripper, the gas flows closer to the plug flow, which maintains the vertical concentration difference. The liquid flows down in the tower as it contacts with gas and concentration of organic compounds decreases gradually to less than the permissible level, then discharged from the base of the tower. As steam flows upward, concentration of organic compounds increases, allowing for their recovery and reuse. Use of little steam allows increasing the concentration of organic compounds, so solvent phase and aqueous phase can be separated efficiently with a decanter.

Ammonia Separation and Recovery Process

  • Concentration, acid, distillation technology

Ammonia Separation and Recovery Process

Ammonia in wastewater is nitrified in the water environment by microorganisms and changes into nitrate-nitrogen or nitrite-nitrogen that adversely affects human beings.
In 2004, the 5th Water Quality Immutable Weight Control was enforced, which started control on nitrogen and phosphorus as substances for eutrophication. The control will be stricter year by year.
We have marketed high-performance packing for many years, and based on our expertise of packing, we have developed and marketed distillation separation equipment. Moreover, to decompose and treat separated ammonia, we provide separation recovery equipment and separation decomposition equipment, incorporating the catalyst technology of Nippon Shokubai.
 
Ammonia gas separated by the stripper is condensed, and then recovered as ammonia liquid. Moreover, it is possible to produce ammonium sulfate, ammonium chloride, or ammonium bicarbonate.

Ammonia Separation and Decomposition Process

  • Combustion and melting technology
  • Concentration, acid, distillation technology

Ammonia Separation and Decomposition Process

Ammonia in wastewater is nitrified in the water environment by microorganisms and changes into nitrate-nitrogen or nitrite-nitrogen that adversely affects human beings.
In 2004, the 5th Water Quality Immutable Weight Control was enforced, which started control on nitrogen and phosphorus as substances for eutrophication. The control will be stricter year by year.
We have marketed high-performance packing for many years, and based on our expertise of packing, we have developed and marketed distillation separation equipment. Moreover, to decompose and treat separated ammonia, we provide separation recovery equipment and separation decomposition equipment, incorporating the catalyst technology of Nippon Shokubai.
 
The temperature of ammonia gas, separated from the stripper by air diffusion, is increased up to a specified temperature for oxidative decomposition with a catalytic reactor. Heat after oxidative decomposition is used for air diffusion, which reduces running cost.

Biotreatment System/Anaerobic Treatment

  • Reaction and reforming technology

Biotreatment System/Anaerobic Treatment

Features

High load and high efficiency
?Organic volumetric loading rate: 50 to 80 kg/m??D
?Organic removal rate: 95% (based on tests with artificial glucose water)

Greatly reduces aerobic biotreatment (activated sludge) volume and eliminates activated-sludge bulking at subsequent stage.
(This system is produced by Tsukishima Kikai Co., Ltd.)

BMB Absorber

  • Absorption and adsorption technology
  • Concentration, acid, distillation technology

BMB Absorber

Methane gas generated from anaerobic biotreatment is converted into a stable fuel by separating concentrations of CH? and CO? in biogas.
Based on our BMB tower technology, we have developed a system for separating and adsorbing CH4 and CO2, which reduces global warming gases. In activated sludge method, aerobic treatment has been employed widely for treating water quality. However, many disadvantages posed by the aerobic treatment have increased applications of anaerobic treatment with methanogens. Compared to aerobic treatment, surplus sludge is decreased markedly with biological treatment, recovering and utilizing CH4 as a carbon neutral product, saving energy and substantially contributing to prevent global warming.
With conventional systems, the quality of fuel recovered from discharged CH4 is low as its recovery is mixed with CO2. However, the BMB absorber recovers high-quality fuel by effectively recovering CH4 and CO2 separately.

Biotreatment System/Aerobic Treatment

  • Reaction and reforming technology

Biotreatment System/Aerobic Treatment

Features

・Effectively reduces organic CODs as pretreatment for activated sludge.
・Reduces the treatment volume of activated sludge and excess sludge generated at the subsequent stage.
(This system is produced by Tsukishima Kikai Co., Ltd.)

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