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  6. New purification device SG-640

New purification device SG-640

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last updated:Dec 09, 2025

正和電工
正和電工
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The treated water is as clean as rainwater, making it reusable! Since it is not mixed with toilet wastewater, it can be relatively easily purified.

The "New Purification Device SG-640" is a new purification system that utilizes binchotan charcoal to treat household wastewater generated from baths, laundry, and kitchens, excluding toilet wastewater. Since toilet wastewater is not included, there is no need for measures against E. coli, and it has been confirmed through a demonstration project by the Ministry of the Environment that the treated water becomes as clean as rainwater. This product is recommended for use in general households. It is designed to be buried for use. 【Features】 ■ An upward flow type waterway that prolongs contact time with binchotan charcoal and allows oxygen necessary for biological treatment to circulate throughout the front of the waterway. ■ Since toilet wastewater is not mixed in, purification is relatively easy. ■ No special qualifications are required for maintenance since toilet wastewater is not mixed in. ■ The treated water is as clean as rainwater, making it reusable. ■ Purification is achieved using binchotan charcoal. ■ Binchotan charcoal is inorganic, so it does not swell in water, and replacement of the charcoal is unnecessary. *For more details, please download the PDF or feel free to contact us.

    Septic tank equipment
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New purification device SG-640

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  • Related Link - https://www.seiwa-denko.co.jp/manage/purify/%e6%96…
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【Specifications (Excerpt)】 ■Volume (m3): 0.64 ■Filtration tanks: 2 ■Overall width: 710 ■Overall length: 2330 ■Overall height: 940 *For more details, please download the PDF or feel free to contact us.

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Bio Toilet "Bio-Lux"

Bio Toilet "Bio-Lux"

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正和電工

正和電工

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The bio-toilet includes four keywords: "environment," "care," "recycling," and "disaster prevention." All of these are very important for the future. Bio-toilets do not require sewage treatment, eliminating the need for the enormous costs currently associated with sewage processing. Our company has also commercialized odorless, furniture-style toilets for indoor use in caregiving. Bio-toilets make it possible to protect water resources, reduce caregiving burdens, and prevent environmental pollution. While the 20th century was marked by flush toilets as a barometer of civilization, the 21st century is the era of bio-toilets.

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