Posted in | News | Water

There's Gold In The Toilet as Japan Mines Gold From Human Sewage

Feb 2 2009

Yomiuri and Nagano Nippo are reporting that a sewage plant in Japan's Nagano prefecture has started mining gold from sewage sludge.

In the first month of mining the plant earnt 5 million yen ($56,000) from the gold they recovered. The sewage plant operator Nagano Prefecture Suwa Construction Office stated that they were able to recover around 1.9 kilograms (4.2 lbs) of gold from each ton of molten fly ash produced by the incineration of sludge.

The waste plant treats about 100,000 tons of wastewater every day. This generates around 3 tons of ash in the process.

Tell Us What You Think

Do you have a review, update or anything you would like to add to this news story?

Leave your feedback

Public Comment

Private Feedback to AZoCleantech.com

Submit

New Products for Energy Research: Battery & Solar Materials

New Products for Energy Research: Battery & Solar Materials

Explore battery and solar materials for your energy research.

From Merck KGaA

Thermo Scientific™ Energy 11 Twin-Screw Extruder

Thermo Scientific™ Energy 11 Twin-Screw Extruder

The Energy 11 Twin-Screw Extruder is a versatile piece of equipment designed for various applications in battery research and development.

From Thermo Fisher Scientific – Materials Characterization

ARL QUANT’X ED X-Ray Fluorescence Spectrometer

ARL QUANT’X ED X-Ray Fluorescence Spectrometer

The ARL QUANT'X is a complete energy-dispersive X-ray fluorescence spectrometer solution for all your elemental analysis needs.

From Thermo Fisher Scientific - Elemental and Phase Analysis

Hi, I'm Azthena, you can trust me to find commercial scientific answers from AZoNetwork.com.

To start a conversation, please log into your AZoProfile account first, or create a new account.

Registered members can chat with Azthena, request quotations, download pdf's, brochures and subscribe to our related newsletter content.

A few things you need to know before we start. Please read and accept to continue.

Use of “Azthena” is subject to the terms and conditions of use as set out by OpenAI.
Content provided on any AZoNetwork sites are subject to the site Terms & Conditions and Privacy Policy.
Large Language Models can make mistakes. Consider checking important information.

I understand, and agree to receive occasional emails about Azthena such as usage tips and new feature announcements.

Please check the box above to proceed.

Great. Ask your question.

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.