STUDY ON THE TREATMENT PROCESS OF AIR POLLUTION AND ASH FROM THE SOLID WASTE INCINERATOR

Abstract

Solid waste in Vietnam is treated in three form: burning, burial and
composting but the solid waste is currently thermal treated. However, the
method of burning is not suitable (not ensuring the furnace’s burning
temperature) may also give rise to subtances toxic waste such as doxin, furan,
CO, NOx… caused the pollution environment, the respiratory illnesses and
cancers. The incinerator who uses the high temperature (900 - 1100oC) the solid
waste burn completely and non poison syngas. The small incinerator as 5kg/hour
was tested in the laboratory, the syngas NO2, CO, SO2 were absorbed in NaOH
0.5N solution, the quality of the syngas is good for the environment and meeting
the QCVN standard (QCVN61-MT:2016/BTNMT). The ashes, dust were generated
during buring which was mixed with kaolin to make adobe bricks, the value of
compressive strength is reached 5.8MPa, the quality of production equivalent to
concrete bricks at TCVN 6477:2016 standard.