W-Gaia" Activated Oxygen Water Treatment Two years after its launch, long-standing problems in water treatment have been solved one after another

WEF Technology Development Co. (Location: Otsu City, Shiga Prefecture; President: Akira Aoyama), which has the world's leading technology for generating large amounts of active oxygen at low cost from oxygen in the air, is pleased to report on the status of utilization of "W-Gaia," which we have developed for complete oxidative degradation of organic matter in water.

In the nearly two years since its release, W-Gaia has solved a number of long-standing problems in water treatment, and its use has expanded to include the treatment of persistent organic matter, oil, color, and various resistant bacteria.

Water Treatment Issues

Recent issues in water treatment are as follows

1) Energy consumption

Energy consumption is one of the biggest challenges in most wastewater treatment systems. In fact, wastewater filtration processes account for several percent of the nation's electricity consumption each year (0.7% at sewage treatment plants alone).

2) New and Complex Pollutants

One of the major concerns regarding water quality in the last few years has been the detection of chemical contaminants in both industrial and municipal wastewater. Every time a new product is manufactured in a production plant, a new wastewater problem arises.

Most of the PFAS and other persistent organics are carcinogens, and we drink this water every day.

3) Residual chemicals

Current wastewater treatment methods primarily only adsorb and precipitate out these dangerous contaminants. The removed organics must be disposed of somewhere. If not properly managed, these chemicals could end up in local rivers along with the treated clean water.

4) Insufficient manpower

Sewage treatment is a complex process requiring highly specialized managers and workers. However, finding enough qualified candidates is not easy, and inexperienced employees can lead to costly mistakes.

■"W-Gaia" Solves Water Treatment Challenges

Unlike ozone, the active oxygen (hydroxyl radical) produced by "W-Gaia" can completely oxidize and decompose the atomic bonds of organic matter in water (into H2O and gas). In other words, COD is greatly reduced in proportion to contact efficiency and treatment time.

By converting difficult-to-decompose wastewater generated at factories to easily decompose (a state where microorganisms can eat it), in-house treatment becomes possible and waste discharge can be reduced.

Reduces COD in raw water at water purification plants (reduces the load on treatment facilities).

No chemical residues due to complete oxidative decomposition.

Pre-treatment at the wastewater treatment plant facilitates the decomposition of organic matter, which makes it possible to reduce the size of the biological treatment tank.

Wastewater treatment is stabilized, eliminating the need for special expertise.

Actual treatment data

1) Food factory wastewater

Image 1: Food industry wastewater treatment

2) Painting-related wastewater

Image 2: Painting wastewater treatment

3) Waste water from washing

Waste water from washing waste plastic for recycling

Image 3: Waste water from washing waste plastic

W-Gaia" equipment and its use

Image 4 "W-Gaia" equipment

Image 5 W-Gaia installation and explanation of treatment

Ozonide ions are generated by mixing superoxide and ozone generated by an active oxygen generator. This is then microbubbled and released to increase the efficiency of contact with organic matter in the water. The bubbles break upon contact with organic matter, instantly generating hydroxyl radicals (OH) and decomposing the atomic bonds of organic matter.

Increasing number of inquiries from overseas

A project to improve water quality in the textile dyeing industry in Vietnam using active oxygen technology was selected for the "FY2025 Asian Water Environment Improvement Model Project" by the Ministry of the Environment.

In many Asian countries, chromaticity in wastewater is regulated, and the textile dyeing industry in Vietnam has long been concerned about color and COD reduction. We believe that W-Gaia can reduce both of these issues at the same time.

The Haiphong City water purification plant has been testing the use of ozone and other substances, but to no avail, so this year they decided to conduct an activated oxygen test. This project is supported by the Shiga Prefecture Water Environment Business Overseas Development Project.

This year, we started an initiative to reduce energy consumption at a sewage treatment plant (50,000 tons/day) in Yantai City (China).

We have started a demonstration project for the treatment of leachate from waste treatment plants around Changsha City (China) as an alternative to the Fenton treatment currently used, which is problematic due to its high running cost.

■Potential of Activated Oxygen Water Treatment

We are currently waiting for nearly a month for our trial test. Nearly 70% of the people in charge at the companies that brought in water for testing did not trust the activated oxygen treatment at all at first.

This is understandable. If the treatment problems that have plagued us for so long could be solved so easily, it would make us wonder what all the hard work has been about. We often hear of tearful efforts such as the ineffective installation of expensive treatment facilities, the flushing of 1 ton of wastewater into 100 tons, the installation and adjustment of several vast buffer tanks, and so on. The problems seem to be persistent organic compounds, oil, and color. Even active oxygen is not perfect, so not everything can be gasified, but there is an overwhelming difference in performance compared to conventional treatment.

We offer a free first trial treatment, so please feel free to contact us for more information.

■Company Profile

Company name: WEF TECHNICAL DEVELOPMENT CO.

Representative: Akira Aoyama, Representative Director

Location ： 1-19-15 Do, Otsu-shi, Shiga

Establishment ： July, 2016

Business description: Development and sales of water treatment, waste recycling, and Mg-related technologies

URL ： https://aoyama-wefit.com

　　　　　 https://mgworld.aoyama-wefit.com/