Work

Chromium and Fluorine Insolubilize Agents and a Treatment Method on Biomass Incinerated Ash

Year: 2025

Type: article

Abstract: Biomass incinerated ash sometimes contains hazardous substances such as hexavalent chromium and fluorine, which poses an obstacle to recycling. In order to remove or insolubilize these harmful substances, aqueous solution of Iron (II) sulfate and mixed solution of sulfuric acid and calcium hydrogen phosphate were added to the incineration ash. In order to thoroughly detoxify the ash, we devised a method in which an excessive amount of treatment liquid is added to the ash, and the surplus water generated is used for monitoring or reused as treatment water. This made it possible to reduce the harmful substances in the ash to below the environmental standard value in a short time.

Source: Applied sciences research periodicals.

DOI: 10.63002/asrp.305.1075

Authors: Masaaki Takahashi, Yukimasa Takemoto, Tadaharu Kado, Naoki Seko, Astusi Suzuki, Yasuyuki Saito, Ayaka Oshima, Nanako Ueno

Institution: Yokkaichi University

Language: English

Topic: Recycling and utilization of industrial and municipal waste in materials production

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: diamond

OpenAlex ID: W4413976289

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