Explanation of artificial wetland technology

Filter wastewater with artificial wetland made of gravel.

Separated sludge is treated into microorganisms on artificial wetlands.

Repeat the filtration with artificial wetlands until the separated liquid reaches wastewater standard.

The treated water is discharged or reused.

Advantages of artificial wetland

・Energy Conservation

・Installation cost is low

・Operational cost is low

・Easy maintenance

・Can operate with natural energy

Disadvantages of artificial wetland

Large footprint(It is smaller than the anaerobic treatment system of Siem Reap sewage treatment plant.)

How to avoid disadvantages

To reduce the footprint

Combination with Activated sludge method

Combination with Dehydrator



FOR CAMBODIA

In 2009, I met children in an orphanage in Cambodia who visited Sapporo.

In 2010, I went to Cambodia for the first time.

I was impressed by the Angkor Wat remains.

I stayed at the orphanage in Siem Reap and touched children’s daily lives.

In 2011, I was involved in opening an orphanage support group.

But I start to feel doubts about orphanage support.

Is this really for Cambodia?

Employment is necessary for Cambodia.

Employment creation will be beneficial to Cambodia.

Infrastructure development raises the value of Cambodia as a country.

I wish I could create employment with infrastructure development according to Cambodia policy.

In 2013, I started investigating water in Cambodia.

In 2015, in cooperation with the Siem Reap Sewerage Bureau, an artificial wetland for wastewater treatment was installed at Preah En Kosei Elementary School in Siem Reap.  We started demonstration test.

In 2015, in cooperation with the Siem Reap Sewerage Bureau, an artificial wetland for wastewater treatment was installed at Preah En Kosei Elementary School in Siem Reap.  We started demonstration test.

New project is in progress.

Reed NET Co.,Ltd. CEO YOKOTA TAKASHI

May 2010 I belonged to National Agricultural Research Center for Hokkaido Region. September 2010 I set up Reed NET for the spread of Artificial wetland.

January 2012 I installed Artificial wetland in Shizuoka and started an investigation in cooperation with Nippon University.

May 2013 I started an investigation in Cambodia.

December 2013 I installed the system which put Artificial wetland and Activated sludge together for the first time in Japan.

July 2015 I installed the system not to use the electricity for Artificial wetland.

August 2015 I started a demonstration test in Siem Reap.

September 2016 I released the action of Cambodia in conference of Ecology and Civil Engineering Society.

December 2017 I installed Artificial wetland for disposal of livestock manure.