For inquiries regarding water treatment, please contact Ryuki Engineering!

★Why not turn the waste liquid you are currently disposing of into something valuable?★ Accepting tests for 10 kg of solid material from 1000 L of slurry liquid in 1 hour.

The "Pleated Filter Dewatering" device allows for the suction filtration of high-concentration slurry (mud-like mixture), forming a cake layer on the filter surface. This formed cake layer is then dewatered and dried, allowing it to be collected as sludge (aggregated solid). Our unique pleated filter enables dewatering and drying in a compact device with a short cycle time. No coagulants or filtration aids are required. The moisture content of the sludge can be as low as 1% for inorganic materials. 【Features】 ■ Individual liquid separation to dewatering and drying in 60 minutes (all-in-one) ■ Compatible with ultra-high concentration turbid water ■ Processing capacity of 400 kg/day (based on processing 1,000 L of 20,000 PPM turbid water) ■ Maintenance requires only filter replacement ◎ For more details, please refer to the PDF document or feel free to contact us.

• Wastewater/wastewater treatment equipment

It decomposes harmful chemicals, bacteria, and organic matter through radicals (free radicals) generated during ozone and bubble disappearance!

Even wastewater that appears colored and does not have sediment can be treated with ozone microbubbles, resulting in the removal of odors, disinfection, and achieving clarity comparable to tap water. The oxidation power of ozone is second only to fluorine and has about 6 to 7 times the disinfection capability compared to chlorine, along with various beneficial effects such as deodorization, bleaching, inactivation of algae, pesticide decomposition, and removal of organic matter. 【Features】 ■ Compact and inexpensive ■ Cost reduction ■ Ozone can remain for a long time ■ Efficient use of ozone ■ 3.83 million bubbles per cc ◎ For more details, please refer to the PDF document or feel free to contact us.

• Water treatment equipment
• Water Activation Device
• Wastewater/wastewater treatment equipment

We will introduce examples of reducing industrial waste costs and converting residual materials into feed to contribute to the creation of valuable resources.

We would like to introduce a case study from Ryuki Engineering, which proposes a reduction in the running costs of water treatment. We received a request from a food processing factory to dry and reduce the weight of their residual materials in order to cut disposal costs. 【Case Study】 ■Industry: Food Processing Factory ■Challenges - When disposing of residual materials (press cake), the disposal fee is determined by weight, leading to high costs for disposing of moisture-laden residuals. - They wanted to dry and reduce the weight of the residual materials to cut disposal costs. To further enhance the efficiency of processing the juice generated during the drying process, we proposed a combination of dewatering and ECO Clean. This not only reduced industrial waste costs but also contributed to converting the dried residuals into animal feed, generating valuable by-products. *For more details, please refer to the PDF document or feel free to contact us.

• Water treatment equipment
• others

We will introduce an example of consolidating into a single machine, achieving a reduction in installation costs and running costs!

We would like to introduce a case study from Ryuki Engineering, which proposes a reduction in the running costs of water treatment. We received a request from a metal processing factory to efficiently recover rare metals from high-concentration rare metal-containing water (valuable material) without lowering the concentration. [Case Study] ■Industry: Metal Processing Factory ■Challenges - Previously, recovery involved four processes (solid-liquid separation, concentration, dewatering, drying), which incurred significant time and costs. - There was a desire to efficiently recover only rare metals from high-concentration rare metal-containing water (valuable material) without lowering the concentration. Our company has consolidated the process into a single machine for de-drying. This one unit handles all roles, significantly reducing installation costs, installation space, and running costs (electricity and maintenance expenses). *For more details, please refer to the PDF document or feel free to contact us.

• Water treatment equipment
• others

90% OFF on water utility fees! Here are examples of reducing maintenance frequency and lowering disposal costs.

We would like to introduce a case study from Ryuki Engineering, which proposes a reduction in the running costs of water treatment. We received a request from a resin factory to reduce maintenance costs caused by impurities entering the heat exchanger from the cooling water used during cutting. 【Case Study】 ■Industry: Resin Factory ■Challenges - The large amount of cooling water used to cool the water during cutting contains impurities (resin scraps) that are entering the heat exchanger. - Maintenance costs for the heat exchanger are high, and we want to reduce them. We proposed dehydration to remove impurities from the cooling water. By using the cleaned cooling water in the heat exchanger, we reduced the maintenance frequency from four times a year to once a year. Additionally, we not only removed impurities but also reduced their volume to lower disposal costs. *For more details, please refer to the PDF document or feel free to contact us.

• Water treatment equipment
• others

50% reduction in water utility fees! Here is an example of how colored groundwater has been purified for use.

We would like to introduce a case study from Ryuki Engineering, which proposes a reduction in the running costs of water treatment. We received a request from a hot spring facility to purify colored groundwater containing organic matter so that it can be used, in order to reduce water utility costs. [Case Study] ■ Industry: Hot Spring Facility ■ Challenge: Reduction of water utility costs Purification of colored groundwater containing organic matter for use Our company proposed a system that combines coagulation sedimentation tanks, ECO Clean, and ozone microbubbles to achieve purification, decolorization, deodorization, and sterilization, resulting in water utility costs being halved. This generated a cost benefit of approximately 50 million yen annually, equivalent to 150,000 liters per day, or 750 baths for household use. *For more details, please refer to the PDF document or feel free to contact us.

• Water treatment equipment
• others

Achieving one-tenth of water supply fees! Here are examples of using purified river water for cleaning purposes.

We would like to introduce a case study from Ryuki Engineering, which proposes a reduction in the running costs of water treatment. We received a request from a precision parts/plating factory that wanted to reduce costs by purifying river water for use as cleaning water for precision electronic components. [Case Study] ■ Industry: Precision parts/plating factory ■ Challenge: The factory has been using tap water for cleaning precision electronic components, but the water bills are high. They want to reduce costs by purifying river water for use as cleaning water. Our company purified the turbidity of river water to the level of tap water using "ECO Clean." By enabling the use of river water, we provided water at one-tenth the price of tap water, achieving a 90% reduction in tap water costs through purification and utilization. *For more details, please refer to the PDF document or feel free to contact us.

• Water treatment equipment
• others

On September 15, 2026, we issued a press release regarding the wooden lightweight sheet "Hyper CLT Sheet." The Hyper CLT Sheet is a civil engineering sheet that utilizes CLT (Cross-Laminated Timber) stacked in an orthogonal direction. It can be used in various locations such as temporary roads, access routes, heavy machinery work yards, and material storage areas. The 5×10 version weighs approximately 230 kg, making it relatively lightweight and easy to install, remove, and relocate. Additionally, it offers environmental benefits such as reducing glare and metallic sounds typical of wood, as well as CO2 fixation. Furthermore, it can be proposed for the use of new technologies in public works as a **registered technology with the Ministry of Land, Infrastructure, Transport and Tourism "TH-250021-A."** Through this press release, we aim to expand the new wooden lightweight sheet that combines wood, NETIS, civil engineering, and CLT to more construction sites.

● The production time for cast prototypes can be shortened! Since model making is not required, the production time for prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly producing sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! Different products, such as similar shapes or varying dimensions, can be molded at the same time in one molding process. This allows for the verification of multiple types in a short period.

The "HA-T Series" is an energy-saving automatic door sensor that opens only for those who wish to enter, whether on a busy street or in a narrow passageway. The automatic door opens simply by bringing your hand close, addressing hygiene concerns even in facilities used by a large number of people. You can choose between "Non-vision Mount Type/HA-T401" and "Non-vision Built-in Type/HA-T520" depending on the application and installation location. 【Recommended for such places!】 ☑ Entrance facing a busy corridor ☑ Presence of counters or signs near the door ☑ Buildings facing narrow passages ☑ Buildings that prioritize aesthetics ☑ Hospitals and facilities that consider hygiene ☑ Large facilities with many doors 【Features】 ● Adaptable to various door types with four detection spot settings ● Reduces unnecessary opening and closing, contributing to energy-saving by minimizing wasteful power consumption ● Equipped with a light touch function, allowing the door to open and close just by waving your hand, ensuring hygiene ● Can also be used as a wide detection range non-vision infrared sensor ◎ For more details, please download the materials or contact us.

Metal cracks are one of the concerns in equipment maintenance operations. Repairs using conventional welding methods often change the base material around the crack due to heat, leading to residual stress and deformation, which constantly carries the risk of "crack recurrence" and "secondary damage." Hinode Waterworks Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material at all. Repairs can be carried out even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.

Metal cracks are one of the concerns in equipment maintenance operations. Repairs using conventional welding methods can alter the base material around the crack due to heat, leading to residual stress and deformation, which always carries the risk of "crack recurrence" or "secondary damage." Hinode Waterworks Equipment Co., Ltd.'s "Mechanical Stitching Method" is a new technique that allows for the repair of metal cracks without applying heat. By using special bolts and reinforcement plates, the crack is physically removed without affecting the base material with heat. Repairs can be performed even in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. For more details, please contact us or download the catalog.