Manufacture of dephosphorizing agent

Abstract

Abstract PURPOSE: To obtain a low-cost, easy to handle dephosphorizing agent by molding night soil or burnt ash of night soil-treated sludge in the presence of calcium component and processing it by a steam autoclave. CONSTITUTION: Calcium component such as slaked lime is added to night soil or burnt ash of night soil-treated sludge if calcium content is insufficient. Further, solidifying agent such as diatom earth is added under indispensable condition or when necessary, and then molded. After this, the molded burnt ash is contained in a steam medium autoclave, granulated and solidified by treating hydrothermally under presence of pressurized steam and made to a contact dephosphorizing agent. Thus, low-cost and easy-to-handle dephosphorizing agent is manufactured by reusing waste. COPYRIGHT: (C)1982,JPO&Japio

Inventors

• 👤 Chiaki Igarashi
• 👤 Toshihiro Tanaka

Bibliographic Details