Alternative Gasifier Applications De-Watered
Sewage Sludge
As a sample, a single gasifier (module
) would be about the size of a typical BGP900. That is it
would be about 28 ft. long x 11 ft. wide. Each module would
be capable of gasifying approximately 6 tons/day of de-watered
sewage sludge. Larger machines are also available to do
up to 24 tons per day.
The sludge would be pumped into each module
in batches. There would be a reduced cool down time because
of the sealed nature of the process due to the pump loading
and because there would be very little ash residual after
a cycle. Ash removal may only be required on a weekly basis.
For pure sewage where there are no industrial chemicals
or heavy metals in the effluent, no air abatement system
would be required. In situations where hazardous materials
may be part of the effluent, appropriate abatement would
be added to remove the pollutants.
In sizing or scaling a system to service
a large community, the requirement would call for one module
or cell for every 6 tons/day of de-watered sewage. For every
6 cells, an extra cell would be added as a back-up for maintenance
shut-downs and/or overflow. The de-watered sewage sludge
would be pumped into a containment tank and from there to
each gasifier.
The treatment of Municipal Sludge and
waste material from sewers is becoming a more serious situation.
The issue becomes more serious with the amount of industrial
sewage waste that is being poured into the system.
The result is that the residential sludge should can no
longer be spread on agricultural fields or used as a fertilizer
for gardens. The BGP Inc. technology can dispose of this
residual sludge safely.
