IRBC-BBR (Immersed Rotating Biological Contactor-Bacillus Bio Reactor) is a high-level treatment process for sewage, industrial wastewater and livestock wastewater. High concentration substances, nitrogen and phosphorus are treated safely, efficiently through impregnated IRBC equipment and a bio reactor.

• Improving sewage and wastewater treatment performance qualitatively
  It is a high-level treatment process that can remove high concentration substances, nitrogen and phosphorus are treated using impregnated IRBC equipment and a bio reactor. It provides an opportunity to improve the quality of treated water innovatively.
• Easy to improve an existing system
  It is easy to replace a degraded conventional plane table RBC and can change a process without significantly changing a civic structure so it can change to a high-level treatment system.
• Easy to maintain a sewage treatment system
  It is easy to operate and maintain through a simple treatment process and provides a diagnosis available plan and a troubleshooting manual when a problem occurs − so it is restored to an original condition quickly and provides constant management service through regular walk-around inspection.
• Economical CAPEX/OPEX
  It has low CAPEX as it utilizes the most of an existing system when improving an existing sewage and wastewater treatment system. It also has low OPEX by innovatively reducing maintenance expenses, so it maximizes the economical effects.

• DISK has a special network structure made of polyvinylidene chloride with excellent property.
• With over 96% porosity, it has a large contact area and is easy for sewage and wastewater and air to enter and exit so it can treat stably at an even aerobic condition.
• DISK is fixed on the rotational axis and contacts raw water flowing in while rotating.
• It is rotating at 2~6rpm while 40% of DISK is being deposited to culture, grow and proliferate microorganisms.
• DISK absorbs various pollution sources while rotating inside 40% deposited wastewater and oxidizes pollution sources while passing the air at the upper part of wastewater.

• Domestic sewage
• Livestock wastewater
• Excreta septic tank
• Landfill leachate
• Organic factory wastewater
• Industrial wastewater
• Recycled water

MLE is an upgraded process of an activation sludge process for filthy water and wastewater treatment. Unlike the existing MLE process, VC-MLE can handle load changes actively and is optimized to remove nitrogen by using core equipment of VC-MLE.

• Using exclusive core equipment
  It can actively handle future reinforcement of the discharged water quality standard using patented equipment our company has developed
  ① Automatic control system
  ② Variable control aerator
  ③ Microbubble silicone air diffuser
• Simple process
  The bio reactor is composed in the order of an anoxic tank and an oxic tank, with a compatible tank which can be used as an anoxic tank or an oxic tank depending on situations, in the middle. With a simple process, it is easy to operate and the amount of sludge generated is small.
• Easy to maintain a sewage/wastewater treatment system
  A high-level process optimized to remove nitrogen. It uses organic matters in an influent as an external carbon source for denitrification. It uses a chemical coagulant to remove phosphorus depending on situations.

The fiber filter that separates particulate in water by filtering using fiberThe technology that filters particulates by pressing fiber filter media covering the inner container when filtering using a spring’s driving power and cleans with air and backwash water by relaxing fiber filter media by a spring’s driving power when blocking up media.

This is a technology that filters and removes iron and manganese in water by granulating with oxidation and adsorption oxidation using high concentration coating of MnO2 (10%) on the zeolite (iron, manganese removal media) and filters particles caught in media after backwashing automatically

Filtering after granulating with oxidation and adsorption oxidation of oxygen in water and coating MnO₂ media

• Mn²+ + MnO₂ → MnO₂ – Mn²+(Adsorption) + O₂(oxidation) → 2MnO₂(granulation)
• Fe²+ + O₂(oxidation) → Fe³+ + 3OH- → Fe(OH)₃(granulation)

It is a technology that prevents scales from generating by transforming ions including Ca²+, Mg²+,SO₄²-, SiO₂- , PO₄³-, HCO₃-, which are the main factors causing scales in water, into insoluble nanoparticles by media. Nanoparticles and CO₂ formed in the nanoparticle transformation process can remove the existing scales gradually.

The measurement method using the previous deposition method has a disadvantage. It results in an error caused by external factors (bubbles, etc.) and is difficult to manage. The automatic control system, developed jointly by Busan Environmental Corporation and researchers of Cheongwoo Ace Co., Ltd., makes up for these disadvantages.
It can control operating parameters including an air flow rate, insertion of a coagulant and a returned amount based on a measured value after measuring numerous factors using various sensors attached to a measurement tank after transferring the water in a reactor to a measurement tank.The DO signal light above enables workers to observe the DO signal light easily while coming and going at a site and identifies the DO concentration.

• Highly accurate due to low external influences
• Can check water-quality data in real-time
• Can manage water-quality stably
• Economical compared to the previous methods

KROFTA TYPE-DAF, the world’s best dissolved-air flotation system, has more than 7,000 sources of demand in the world. Over 20,000 units were sold and it can be operated high-efficiently and stably.

• HRT 3~5 min
• Air dissolution rate 27%
• Surface loading 10~40m3/m2h
• SS removal rate 90~99.5%
• COD, color, turbidity and oil removal rate 50~99%
• Zero speed, Swallow tank technology

• Tertiary treatment of sewage and wastewater, total phosphorus treatment and reclamation
• Treatment of algae in streams, lake water and dams
• Treatment of turbidity of water treatment and industrial water treatment systems
• Pre-process of BWRO/SWRO
• Sludge concentration and recycle water treatment
• Filter and membrane (MF, UF, RO, etc.) backwashing water and concentrated water treatment
• Improvement of the performance of the previous DAF

It is a process that obtains fresh water with high purity by removing solutes dissolved in seawater using semipermeable membrane and osmotic pressure. A process is designed depending on the TDS concentration and used for seawater desalination and wastewater reuse.

• Very high efficient
• Can handle load changes.
• Low CAPEX and OPEX
• Very simple treatment process
• Easy to control and automate

This is a functional filter that fills in media to remove substances polluting water. It can remove TOC, NO₃-N, NH₄+-N, T-P, Fe, Mn, As, SDI and turbidity.

This is a granular filter media product with the best performance that can be applied to all areas including drinking water and wastewater treatment. It can coprecipitate through catalysis, filter and remove various organic and inorganic matters using a special method.

This filter decomposes pollutants biologically. It can also perform some filtering functions. It uses carriers shown below as a bio filter.