|
Supported by
|
Measure List Meat Processing
Industry
To download this list in Excel format click
here
|
|
Description |
|
Energy management |
1. By replacing/ reducing hot water the amount
of energy needed to increase its temperature is limited. 3. The condensers of refrigerators release
heat drawn from the refrigerated spaces. This pumped heat can rise up to about three times the electric capacity taken
in by the cooling compressor. With the help of water-cooled condensers, this
heat can be recovered and used for heating process water up to about 35°C. A
buffer tank will be required to bridge the asynchrony of heat demand and
supply. Heat recovery for a water-cooled condenser of 550 kW with a buffer
tank costs about €20.000. Savings on total gas consumption depend highly on
the company's situation. Usually there are air-cooled condensers on the roof
as backup for the water-cooled condensers. An energy-efficient alternative
for this (at the same price) is a vapour condenser. Vaporizing water enables
transferring the same amount of heat to the air with less (ventilation)
energy. If an air-cooled condenser is used instead of a water-cooled
condenser, it is more profitable to invest in controls for the refrigeration
system. 4. About 10 % to 20 % of the total amount of
heat to cool off is produced by lighting and (production) machines in
refrigerated spaces. This heat production can be reduced by about 5 % by
using better protection (isolation) for the (production) machines and by
turning the machines on and off selectively. 5. The greatest improvements in the energy efficiency of refrigeration
plants can be achieved by ensuring that sufficient condenser capacity is
available, either by adding additional condensers or by regularly servicing
and maintaining condensers in good working order. Greater condenser capacity ensures the head
pressure on the system is as low as possible. 6. Plate freezers used for the freezing of
cartooned meat have a number of advantages over conventional air blast tunnel
freezers. The major advantage is greater energy efficiency (plate freezers
use 45-65% less power than air blast freezers). 7. Screw presses have proven to be a
convenient mean of dewatering paunch manure. This unit is a screw press of
which there are several designs and manufacturers. They perform a similar
function dewater to varying degrees. They can be used to separate paunch
solids from paunch washings from wet dump systems, or to dewater paunch from
dry dump systems. Screw presses squeeze liquid out of the solids to produce a
cake with relatively low moisture content. The dewater solids can then be
easily transported or composted etc. The reduced moisture content of the
paunch solids means that transport costs for haulage of the material can be
significantly reduced. 8. Direct use of manure: Animal manures
contain phosphorous, nitrogen, and also organic carbon which increases the
fertility of fields when used. 9. Biodiesel from tallow: Collection and
further disposal of tallow to satisfy the needs for transport fuel. It is
about to be a simple chemical process, especially efficient for diesel
vehicles. 10. Rational use of chemicals to avoid
confusing and over dosing procedures. Use of environmentally friendly ones. 11. Profitability of investing in a combined
heat and power (CHP) unit for the SMP plants was also investigated and found
to be smaller than extended heat recovery or new heat pumps in the studied
plants. 12. Use of membranes: Membranes can be a
cost-effective alternative, especially if they increase by-product recovery
In the food processing industry, traditional filtration, separation, and
evaporation processes are typically used to separate, clarify, and purify
foods and beverages. 13. Anaerobic digestion of wastewater and manure to produce biogas (Methane). 14. A large amount of the heat transferred to the cold frame, necessary
for maintaining a water temperature of about 60°C, is lost through
evaporation. Covering the cold frame significantly reduces the loss of water
vapour and therefore energy. Heat loss related to the import and export of
the covered cold frame can be further reduced by installing strips. Savings
of up to 30% on the gas consumption of the cold frame are possible.
Vaporization in the dirty slaughtering hall will also be reduced
significantly, therefore improving the working climate and enabling a lower
ventilation flow rate constant. The costs of a covering construction and the
related savings depend heavily on the current situation. 15.
Replace electric boilers with gas-fired high-performance boilers. The
performance of gas-fired boilers is much higher than that of electric boilers.
This is due to the energy losses in generating electricity. If possible, it
is recommended to install a gas-fired hot water system. This can be a geyser,
gas boiler, or combination boiler. Different boilers have different
performance and ease-of-use characteristics. Ask your boiler supplier for
more information. 16. Use
gas-fired steam generators instead of a steam boiler. Gas-fired steam
generators have a better burn performance than steam boilers. The smoke gas
temperature is also lower than in steam boilers and excess air can be
reduced, which reduces flue losses. Also, a smaller load is often sufficient.
The disadvantage of steam generators is that they have no steam supply. |
|
Sterilizers |
1. Replace continuous overflow sterilizers
with intermittent devices using infrared sensors. 2. Ensure that continuous overflow devices are
not overusing hot water by the use of inline flow restrictors 3. Consider retrofit of inline flow
restrictors for existing sterilizers, to limit maximum flow rate. 4. Ensure sterilizers are double skin
insulated types, to minimise heat loss and reduce potential for worker
injury. 5. Consider whether some sterilizers can be
removed. |
|
Set the reserve boiler on "cold" and
install a choke valve |
1. If you have two central heating boilers,
for example one with high performance (Hoog Rendement) and another with
improved performance (Verbeterd Rendement), it is a good idea to install a
choke valve with cascade control between them.
3. Cascade control prevents unnecessary
heating of the reserve boiler.
|
|
By-products |
The identification of alternative uses or
conversion processes for co-products should be a priority The rendering
industry processes the parts not used for human consumption for technical use
and for use as animal feed. This activity may generate large quantities of
solid waste including the manure and bedding material generated during animal
transport and lair age activities, as well as waste from processing steps. |
General
saving methods
|
|
Description |
|
Packaging
|
Packaging has been recognised for some time as an important environmental
issue, particularly for the food industry. For the meat industry, the message
is that packaging must be designed to minimise waste (less packaging) and
enable recycling, reuse or recovery (incineration with energy recovery). Also the use of PVC and other chlorine containing plastics may need to be
restricted. |
Note 1 The sole
responsibility for the content of this publication lies with the authors. It
does not represent the opinion of the Community.Β The European Commission is not
responsible for any use that may be made of the information contained therein.