下水汚泥資源の肥料利用

Urban Farm DB summary

A Japanese Ministry of Land, Infrastructure, Transport and Tourism page on expanding fertilizer use of sewage sludge resources. Of the roughly 2.3 million tonnes of sewage sludge generated annually, about 50,000 tonnes of phosphorus content is present; roughly 1,000 treatment plants put sludge to fertilizer use, but this covers only about 15% of total sludge generated. The 'Food Security Enhancement Policy Package,' decided December 27, 2022, set a 2030 target of doubling fertilizer use of sewage sludge resources/compost and raising the share of domestic resources in phosphorus-based fertilizer use to 40%.

Only numbers and their conditions are stored, as structured data — never the source's own sentences. Metric and condition names stay in English, as coded.

• 2.3 million_tonnes

  annual sludge generation(sewage sludge)

  Compost

  region

  Japan

• 15 %

  fertilizer use share of total sludge(sewage sludge)

  Compost

  region

  Japan

• 40 %

  target domestic resource share of phosphorus fertilizer 2030(sewage sludge)

  Policy

  region

  Japan

  year

  目標年度: 2030年

Direction of conclusions

Each author conclusion is recorded only as a coded direction per topic. Read the original for the conclusion itself.

• Compost / nutrient cycleSupportsWith caveats