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Q

What is the burden on the environment among domestic wastewater?

Last updated on October 4, 2023.

A

Drainage from the toilet is the most burdensome.
Of the pollutants' load sources, about 30% of BOD, about 70% of nitrogen, and about 60% of phosphorus are derived from toilet drainage.
The rest is derived from drainage from kitchens, laundry, baths, etc.
[Reference Materials]
Water Management and Land conservation Bureau, Ministry of Land, Infrastructure, Transport and Tourism Sewerage Department. Guidelines and commentary on the comprehensive sewerage maintenance plan by basin 38p. January 2015.

Inquiries to this page

Water Quality Section, Sewerage and Rivers Bureau Sewerage Facilities Department

Phone: 045-621-4343

Phone: 045-621-4343

Fax: 045-621-4256

E-Mail address [email protected]

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Page ID: 997-915-096

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