MacerAcer Waste Water Screenings Conditioning
Equipment
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MacerAcer
The MacerAcer is designed for installation in conjunction with
screens handling raw sewage. The MacerAcer screenings conditioning
package processes wet screenings from mechanical bar,
traveling band screens or rotary drum screens.
Description:
I) Solids Conditioning The emulsification of organic matter
(fecal matter/fats and greases) in water. The cutting of inorganic
matter into 3/8" pieces for separation and dewatering.
II) Separation Separates the organic matter from the inorganic
matter and sends organics back to the channel for downstream
processing.
III) Dewatering Reduction of volume and weight of the
inorganic solids for disposal via centrifugal dewatering. |
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| ADVANTAGES |
Remarkably Clean, Unrecognizable End Product
Significant Weight and Volume Reduction
Virtually Odor Free Solids |
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The Problem
Screenings of Mixed Debris Rags, Cotton Products, Fiber, Plastics, Paper,
Hair, Fecal Matter, Oils/Fats/Grease as discharged by a screw compactor
cause strong odors, attract insects and are unsanitary.
Designers of municipal wastewater treatment plants normally avoid the use
of fine screens at the headworks due to concerns over removal of the organic
matter and the potential interruption of the downstream treatment processes.
Additional concerns arise from landfill restrictions pertaining to the disposal
of free and absorbed water, fecal contamination of screenings and the accompanying
odor problems that arise from screenings collection and storage. The
ever-changing regulations and discharge restrictions now present the engineer
with the problem of balancing all headworks’ screenings handling equipment
and treatment processes. The MacerAcer addresses all of these issues.
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The Solution
The MacerAcer screenings conditioning package solves all the
normal concerns and allows the engineer superior flexibility in the
design of new plants or upgrade of existing plants. The MacerAcer
uses two primary elements, each of which provides two essential
steps in the processing of wet screenings. The Maceration (Maci)
Pump vigorously agitates the wetted screenings in the conditioning
tank, then shears the inorganics into various sizes approaching
3/8". The conditioned screenings are pumped in a slurry to the
LiSep (Liquid Separator). This provides the crucial stage of forcing
out the fecal matter and emulsified fats and grease for return to
flow while centrifugally separating free and absorbed liquid from
the remaining inorganic solids. The 87%-93% dewatered solids are
then ejected into a dumpster in a virtually odorless and unrecognizable
form. The photos to the right show end product discharge
directly from LiSep (top) or optional LiPactor (bottom).
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Other Features
A compact design with low maintenance, easy parts replacement, and long
service life. Its simple installation avoids costly civil modifications. Both
Duty Only and Duty Standby systems allow for short run times, lower operational
costs and redundancy protected operation. A secondary grit settling
tank (9) is available for areas where grit loading can be quite high. Controls
(10) are simple and fully automatic. An optional LiPactor solids compaction
unit allows solids to be compressed by a mini screw, providing additional
volume reduction for storage and disposal and aids in preventing wind
blown particles. The inorganic end products are virtually feces-free, unrecognizable
and odorless resulting in exceptional volume reduction.
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NOTE: 1000 package shown. 500 package is slightly smaller. 2000 package is
slightly larger. |
