REMOÇÃO DE UMIDADE DE LODO TÊXTIL POR SECAGEM TÉRMICA

Authors

  • Pierre Arthur Münch
  • Francisco Odisi

Abstract

The textile industry treatment of effluents needs to go through biologic treatment of activated sludge in order to eliminate its high organic rates. This process generates dewatered sludge with high humidity, requiring the rightway and composition to dispose it, according to the law 12.305 from 2nd August, 2010, which instituted the Política Nacional de Resíduos Sólidos. The purpose of  this article is to demonstrate the reduction of sludge humidity through the installation  of a thermal dryer. In order to reproduce the tests, the sludge was collected from a textile industry effluents treatment station, located in the town of Guabiruba – SC. In order todetermine the equilibrium humidity ratio, the sludge was submitted to a dewatering process in a belt filter press, followed by a dryer process in a thermal dryer machine. In this situation, the humidity removal reaches 87%, generating a 66%reduction in thetotal volume of sludge sent to landfill. This process of textile sludge drying reflects gains both in costs for the company and in a smaller volume discarded
in nature.

Published

2022-08-29