Study on Degradation Mechanism of Tank Lining Material caused by Kitchen Drainage.

Part1. Principal Component Analysis of Drainage Water and Floating Solids in Tank.

Abstract

In order to understand the degradation mechanism of tank lining material caused by kitchen drainage, some investigations and experiments were conducted. The drainage water and the floating substance were sampled from tank, and the principal component analysis of it was conducted. Trace amounts of short-chain fatty acid were detected form the drainage water. Trace amounts of short-chain fatty acid and large amounts of long-chain fatty acid were detected from the floating substance. The experiments that dip epoxy in the drainage water or in the floating substance were carried out. The epoxy degraded remarkably by contact with the floating substance.