Development of novel functional materials from unused phosphate resources utilizing impurities.

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K00610
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Environmental conscious materials and recycle
• Research Institution: National Institute of Technology, Toyama College
• Principal Investigator: TAKAMATSU Saori 富山高等専門学校, 物質化学工学科, 講師 (10547855)
• Co-Investigator(Kenkyū-buntansha): 中里 勉 鹿児島大学, 理工学域工学系, 准教授 (30323330) ; 丁子 哲治 鹿児島工業高等専門学校, その他, 校長 (80092790)
• Research Collaborator: TAFU Masamoto 富山高等専門学校, 物質化学工学科, 教授 (50270244)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 未利用リン資源 / 下水汚泥焼却灰 / 水酸化アルミニウム / 水酸アパタイト

Outline of Final Research Achievements

This research focued iron and aluminum ions that need to remove for phosphate recovery, and attempted utilize its. We investigated effect of aluminum gels on phosphate recovery from aluminum containing phosphate solution, and effect of iron ion on phosphate recovery. Recovery efficiency of phosphate in simulated solution was improved by using aluminum gels. By using this method, 90 % of phosphate in extract from sewage incinerated ash and carbonized sewage sludge were recovered. From these results, preparation of calcium phosphate by using aluminum gels is applicable to recover unused phosphate in acid extract from sewage sledges.

Free Research Field

環境材料・リサイクル