The invention relates to an improved process for a biochemical treatment method of MDF dried
tail gas and a
treatment system. The improved process comprises the following steps: carrying out high-speed and high-pressure atomization
spray cooling and
aldehyde suction; and (2) carrying out low-speed
smoke water film dust removal and
aldehyde suction, wherein a
moisture separation and
slag condensing process is additionally set between the step (1) and the step (2) and comprises a gravity
settling slag condensing process and a
moisture rotary separation
slag condensing process. By utilizing the
moisture separation and slag condensing process,
sludge and water in a preserved region can be timely exhausted and subjected to a water purification slag removal process,
treated water can be circularly used in each procedure, a whole production
system does not need to be halted during the slag discharging, manual cleaning is not required, and a separated
clean water body can be discharged along with
tail gas, so that the storage cost of the
water body is lowered; and furthermore, a large amount of
clean water body is taken away through the discharging of the
tail gas, so that a 'white dragon' phenomenon is reduced, and the problem that a
sewage treatment
station needs to be built by increasing a huge investment so as to treat 'production
wastewater' which is caused when 20-30 tons of condensate water is produced each hour is solved.