DJ-WAVEエンジニアリング List of Products and Services

This document includes numerous examples of how our proposed equipment can solve challenges faced by factories and research facilities, such as "wanting to treat high-salinity wastewater containing COD components," "wanting to reduce wastewater treatment costs," and "wanting to automate the operation management of combustion facilities." We clearly present the background leading to the implementation and the results achieved. ★ For more details, you can view it immediately by clicking "PDF Download." 【Contents (excerpt)】 <Examples from the Chemical Industry> - Reduction of treatment costs by recovering and reusing waste ammonia - Incinerator with a cooling method different from existing systems - Automation of the startup and shutdown processes of equipment <Examples from the Semiconductor Industry> - Proposal of a circulation system capable of heat recovery, achieving reduced running costs - Reduction of energy consumption by utilizing exhaust heat from catalytic decomposition <Examples from the Automotive Industry> - Automation of batch operation equipment *Please feel free to contact us with any inquiries.

• Wastewater/wastewater treatment equipment
• Hazardous material processing

This document introduces case studies of actual consultations that resulted in customer satisfaction, categorized by industry. We encourage you to read it. 【Case Study of a Certain Company K in the Environmental Industry】 We received an inquiry from a certain Company K in the environmental industry, seeking to treat wastewater containing ammonia and recover ammonia gas. We introduced a certain piece of equipment that successfully recovered the high-concentration ammonia gas required by the customer, becoming a key component of their future plans. Many more case studies are available. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

There are many voices expressing the desire to "reduce the incineration costs of waste liquid" and "concentrate the waste liquid." This document introduces case studies from various industries where we have received inquiries and achieved customer satisfaction. 【Case Study of Company J in the Petrochemical Industry】 We received an inquiry from Company J in the petrochemical industry, stating that the waste liquid discharged from their factory was difficult to reuse and had no alternative utilization methods other than incineration, and they wanted to reduce these incineration costs. By introducing a certain piece of equipment, we were able to reduce incineration costs by concentrating and reducing the volume of the waste liquid. We have many case studies available. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

This document introduces case studies categorized by industry. **Case Study of Company I in the Functional Materials Industry** Company I in the functional materials industry consulted with us to reduce the costs of treating waste gas from their factory. We introduced a certain piece of equipment that absorbs hydrogen chloride gas contained in the waste gas using an absorption tower, allowing it to be recovered as hydrochloric acid, which led to a reduction in treatment costs. Many other case studies are also available. We encourage you to read them! If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us.

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

This document introduces case studies of clients who have consulted with us and expressed satisfaction, categorized by industry. [Case Study of Company H in the Automotive Industry] We received a consultation from Company H in the automotive industry regarding the engineering of their alternative energy research equipment. After introducing a specific piece of equipment and holding multiple meetings, we were able to automate a fully automatic batch operation process consisting of dozens of steps. We have many case studies available. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

This document introduces case studies categorized by industry. [Case Study of a Certain Company G in the Semiconductor Industry] We received an inquiry from a certain Company G in the semiconductor industry regarding the concentration of ammonia in wastewater due to the use of ammonia in their factory. We introduced a certain piece of equipment that was able to reduce the ammonia concentration in the wastewater to below regulatory levels, significantly reducing energy consumption compared to steam methods, thereby contributing to lower running costs. Many case studies are available. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

Are you struggling with ammonia removal and energy conservation? This document introduces examples of ammonia removal and steam consumption reduction. [Case Study of a Certain Company F in the Semiconductor Industry] We proposed ammonia emission equipment to a certain Company F in the semiconductor industry to remove ammonia from wastewater. However, due to the customer's request for energy conservation, we suggested the installation of equipment to recover heat from the steam used as a heat source. We introduced a certain piece of equipment that was able to reduce the ammonia concentration in the wastewater to below regulatory levels, and compared to not installing the equipment, we achieved a 90% reduction in steam consumption. We have many case studies available. Please take this opportunity to read through them. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

With the reduction of personnel, the automation of equipment has become essential. In this document, we will introduce case studies where we have received inquiries and satisfied our clients, categorized by industry! We encourage you to read it at this opportunity. 【Case Study of a Certain Company E in the Chemical Industry】 We received an inquiry from a certain Company E in the chemical industry regarding personnel reduction, and we proposed the automation of the startup and shutdown processes of the equipment. We introduced a certain piece of equipment and were able to contribute to labor savings by performing the startup and shutdown processes through dedicated programming for automatic control, thereby reducing manual operations by operators. We have many case studies available. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

This document introduces case studies of actual consultations that have led to customer satisfaction, categorized by industry. We encourage you to take this opportunity to read through it. 【Case Study of Company D in the Chemical Industry】 We received an inquiry from Company D in the chemical industry regarding equipment for neutralizing high-salinity wastewater containing COD components for off-site discharge. We introduced a certain piece of equipment that simultaneously performs high-temperature oxidation treatment of harmful components in the wastewater and neutralization treatment, making it possible to neutralize acidic components in both exhaust gas and wastewater. This was achieved with a compact design, leading to great customer satisfaction with the delivery and operation. We have many case studies available. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

This document introduces case studies categorized by industry. [Case Study of a Certain Company C in the Chemical Industry] A certain Company C in the chemical industry requested to treat newly generated waste gas from equipment expansion using a different method than the existing one. We introduced a certain piece of equipment, and although there were initial mechanical troubles, after resolving those issues, it has been operating stably and is capable of long-term operation, receiving high praise. Many case studies are currently available. We encourage you to read them at this opportunity. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

Are you struggling with issues like wanting to remove ammonia from wastewater or improve to meet regulations? This document introduces actual cases where we have provided consultations and satisfied clients, categorized by industry. **Case Study of Company B in the Chemical Industry** Company B in the chemical industry consulted us about the increase in nitrogen content in their wastewater due to the expansion of their factory facilities. They wanted to know if it was possible to remove ammonia from the wastewater to meet discharge regulations. By introducing a certain piece of equipment, they were able to meet the regulations for wastewater and successfully reduce the amount of ammonia they needed to purchase. This also led to a reduction in vaporization energy. We have many case studies available. We encourage you to read through them during this opportunity. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

Are you having trouble with ammonia wastewater treatment? This document introduces case studies from various industries where clients have consulted us and expressed satisfaction. We encourage you to read it at this opportunity. [Case Study of a Certain Company A in the Chemical Industry] A certain Company A in the chemical industry was using ammonia water in their factory, which resulted in high wastewater treatment costs. They consulted us to reduce these costs. By introducing a certain piece of equipment, we enabled the recovery and reuse of ammonia water from wastewater that was previously treated as industrial waste, thereby reducing treatment costs. We have many case studies available. If you are interested in the equipment, the background, or other case studies, please feel free to download or contact us!

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

We provide solution services to address environmental issues for our customers. This document introduces actual cases we have consulted on, categorized by industry. If you are facing any concerns, such as reducing running costs, energy consumption, or waste disposal costs, we encourage you to read this document. [Contents (partial)] ■ Reduction of treatment costs by recovering and reusing waste ammonia (chemical industry case) ■ Proposal of a heat recovery circulation system, achieving reduced running costs (semiconductor industry) ■ Automation of batch operation equipment (automotive industry case) ■ Contribution to reducing running costs (petrochemical industry case), etc. *For more details, please download the PDF or contact us.

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

The waste acid treatment equipment is a process that recovers hydrochloric acid and iron oxide from the ferric chloride solution discharged from the steel acid washing process. Traditionally, thermal decomposition methods using combustion gases, such as the spray roasting method (Rusner method) and fluidized roasting method (Rulgi method), were utilized, but our process conducts all reactions in the liquid phase. Additionally, this process can also be applied to recover hydrofluoric acid from iron fluoride. 【Features】 - No exhaust gas is produced, eliminating the need for exhaust gas treatment for NOx, HCl, dust, etc. - Easy to start and stop operations due to the liquid phase reaction. - Uses steam as the heat source, eliminating the need for fuel. - Energy-saving compared to conventional methods. - The concentration of recovered hydrochloric acid can exceed the azeotropic composition. - Requires a small installation space. *For more details, please refer to the PDF document or feel free to contact us.

• Wastewater/wastewater treatment equipment

The hydrofluoric acid and nitric acid treatment equipment is designed to process waste gases containing hydrofluoric acid, nitric acid, and nitrogen oxides emitted from semiconductor manufacturing and solar cell manufacturing businesses. This equipment consists of an alkaline scrubber for removing hydrofluoric acid and nitric acid, a catalytic reaction tower for reducing nitrogen oxides, and a gas heater to heat the waste gas to a temperature suitable for catalytic reactions. The packing material for the alkaline scrubber uses MIRAX, which offers superior performance compared to conventional random packing, allowing for a more compact design than existing equipment. 【Features】 ■ Compatible with various concentrations of harmful gases ■ Effective utilization of waste heat ■ Low energy consumption ■ Control measures to prevent leakage of ammonia in the treated gas, considering the surrounding environment *For more details, please refer to the PDF materials or feel free to contact us.

• Gas recovery/treatment equipment

Solvent recovery is one part of the many processes available for treating waste gas that contains VOCs. Our absorption and distillation method selects a solvent suitable for the target VOC components and employs an absorption method, making it an efficient system. Due to the absorption method, it can handle large flow rates and high concentrations. Additionally, the absorbed VOC components are separated and purified in a distillation column, allowing for reuse. 【Features】 ■ Capable of handling large volumes and high concentrations ■ Minimal wastewater ■ Absorption liquid can be reused repeatedly ■ No ignition troubles associated with activated carbon ■ No external leakage of the absorption solvent *For more details, please refer to the PDF document or feel free to contact us.

• Gas recovery/treatment equipment

The ammonia removal and recovery device is used in the process of capturing ammonia from wastewater. There are methods for releasing ammonia using steam and air. Ammonia can be recovered as ammonia water at a concentration suitable for its application, or as ammonia gas. It is also possible to recover it as ammonium sulfate. By combining catalysts, it is possible to decompose the released ammonia and render it harmless. 【Features】 ■ Recovery of ammonia at the required concentration ■ Design of a release tower using resin-based structured packing ■ Energy-saving type incorporating a heat pump ■ Complete decomposition treatment of recovered ammonia is also supported *For more details, please refer to the PDF materials or feel free to contact us.

• Gas recovery/treatment equipment

The waste liquid concentration device is a system that efficiently concentrates wastewater by utilizing the heat source of steam. By using a multiple-effect evaporator, it is possible to reduce steam consumption to less than one-third, and energy savings can be achieved by utilizing steam recompression blowers. Our company examines the composition and physical properties of the waste liquid and proposes an appropriate concentration process. 【Features】 ■ Compact structure with a small installation area and low cost ■ Energy-saving types using ejectors, steam blowers, and compressors are also available ■ Concentration and solidification processes combined with dryers are possible ■ By using a multiple-effect evaporator, steam consumption can be reduced to less than one-third * For more details, please refer to the PDF materials or feel free to contact us.

• Wastewater/wastewater treatment equipment

The solid waste incineration system is capable of completely incinerating a wide variety of waste. By combining a kiln and a stoker, waste is dried and incinerated in the kiln furnace, while difficult-to-burn materials are incinerated in the stoker furnace with a longer residence time. Additionally, incineration ash and dust are mixed and conditioned, and further insolubilization treatment is performed using chelation. It is also possible to incorporate drying equipment for sludge utilizing the flue gas from the combustion furnace. 【Features】 ■ Operation tailored to waste types through individual combustion management of the kiln and stoker ■ Effective use of waste heat energy (steam recovery, power recovery, drying heat source, etc.) ■ Compatibility with a wide range of waste ■ Easy operation control *For more details, please refer to the PDF materials or feel free to contact us.

• Incinerators and incinerators

The organic chlorine incineration facility is designed to incinerate organic chlorides and recover hydrochloric acid. It incinerates chlorine-containing organic substances and waste hydrochloric acid containing organic materials at temperatures exceeding 1000°C, completely oxidizing the organic matter and recovering the chlorine as hydrochloric acid. The concentration of the recovered hydrochloric acid is typically around 18%, but by combining it with a dispersion tower, it is also possible to recover 100% hydrochloric acid gas. 【Features】 ■ Complete decomposition of organic matter ■ Effective heat recovery from high temperatures ■ Possible to recover 100% hydrochloric acid gas when combined with a dispersion tower *For more details, please refer to the PDF materials or feel free to contact us.

• Wastewater/wastewater treatment equipment
• Incinerators and incinerators

The waste liquid incineration equipment is capable of incinerating high COD waste liquids containing alkali metals such as sodium and potassium. In this liquid combustion device, these waste liquids are atomized and sprayed into a high-temperature atmosphere of 850 to 1200°C, completely oxidizing and decomposing organic matter. As auxiliary fuels, gaseous fuels such as natural gas, liquid fuels such as heavy oil, waste oil, and waste gas can also be utilized, allowing for simultaneous treatment of wastewater, waste gas, and waste oil. 【Features】 ■ Capable of incinerating waste liquids containing alkali metals that melt at high temperatures ■ Complete decomposition of organic matter ■ Incineration without the generation of dioxins due to rapid cooling mechanisms ■ Simultaneous treatment of wastewater, waste gas, and waste oil is possible *For more details, please refer to the PDF materials or feel free to contact us.

• Incinerators and incinerators
• Wastewater/wastewater treatment equipment

"MIRAX" is a new type of plastic packing developed for mass transfer applications such as absorption, desorption, and distillation. It is designed to leverage the properties of plastic, featuring low pressure loss and strong resistance to corrosive liquids such as acids and alkalis. The materials can be selected and manufactured from PVC (60°C), PP (80°C), PP-HT (100°C), and PVDF (120°C) according to the fluid and temperature conditions being processed. Additionally, it possesses high buckling strength due to the use of a special welding method and corrugated plates. If you provide us with your conditions, we can calculate the processing capacity and tower diameter, and it is possible to reduce the tower diameter, so please feel free to consult us. 【Features】 ■ Low pressure loss ■ Excellent mass transfer performance ■ Superior liquid dispersion ■ High buckling strength ■ Low cost *For more details, please download the PDF or feel free to contact us.

• Gas recovery/treatment equipment