GineersNow Renewable Green Leaders Magazine Issue 001
GineersNow Renewable Green Leaders Issue 001 Renewable Green Leaders Magazine: Meet the Heroes of Renewables and Clean Energy Exclusive: EKOenergy, REN21, WWEA, Dubai Sustainable City, IRENA, Ericsson, ABB Special Feature Stories: Bio energy, Geothermal energy, Hydro energy, Green buildings, Recycle, Solar, Sustainability, Upcycle, Energy storage, Tidal energy, Waste management, Wind energy, Circular Economy, Power generation, Cogeneration Country Focus: China, United States, Canada, United Arab Emirates, Saudi Arabia, Qatar, Bahrain, Kuwait, Oman, United Kingdom, Singapore, Hong Kong, Philippines, Malaysia, Indonesia, India, Australia More engineering stories at https://www.gineersnow.com/topics/magazines
GineersNow Renewable Green Leaders Issue 001
Renewable Green Leaders Magazine: Meet the Heroes of Renewables and Clean Energy
Exclusive: EKOenergy, REN21, WWEA, Dubai Sustainable City, IRENA, Ericsson, ABB
Special Feature Stories: Bio energy, Geothermal energy, Hydro energy, Green buildings, Recycle, Solar, Sustainability, Upcycle, Energy storage, Tidal energy, Waste management, Wind energy, Circular Economy, Power generation, Cogeneration
Country Focus: China, United States, Canada, United Arab Emirates, Saudi Arabia, Qatar, Bahrain, Kuwait, Oman, United Kingdom, Singapore, Hong Kong, Philippines, Malaysia, Indonesia, India, Australia
More engineering stories at https://www.gineersnow.com/topics/magazines
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CREATING VALUE FOR INDUSTRY 41<br />
Robert Wiseman<br />
Dairies<br />
Reducing water consumption for a higher<br />
economic value and a lower carbon footprint<br />
One of the major costs in milk processing<br />
is water: 1.3 liters of water is needed for<br />
every one liter of milk processed. On top of<br />
this, 4.2g of chemical oxygen demand (COD)<br />
is produced from every liter of milk processed,<br />
which is then discharged into wastewater.<br />
Robert Wiseman decided to optimize its<br />
water and wastewater use by aiming to<br />
reduce water consumption across its dairy<br />
network by 25% over a five year period.<br />
The project was started in their main dairy<br />
plant located in Bridgwater, which processes<br />
125 million liters of milk per day.<br />
Veolia Water Technologies (VWT) is<br />
supporting Robert Wiseman’s project by<br />
providing a Dissolved Air Flotation (DAF)<br />
system and a membrane bioreactor (MBR)<br />
to reduce COD. The quality of the discharged<br />
effluent more than meets the environmental<br />
requirements. In fact, the quality of the<br />
treated effluent was so good that Robert<br />
Wiseman wanted to reuse it.<br />
VWT therefore proposed its reverse osmosis<br />
(RO) system: MegaRO TM to recycle the effluent<br />
in order to use it for the CIP (Cleaning in<br />
Place) system. The MegaRO technology uses<br />
a membrane to remove 99% of residual COD,<br />
dissolved salts and bacteria from the treated<br />
process wastewater, producing water of equal<br />
or better quality than the mains supply.<br />
VWT was one of the early pioneers of<br />
MBRs, thanks to its Biosep process, and<br />
using this expertise VWT were able to feed<br />
the MBR effluent directly to the MegaRO<br />
system with no set-backs. Robert Wiseman<br />
became the first dairy industry business in<br />
the UK to install a RO recycle system, enabling<br />
them to recover 200m/day of process<br />
wastewater.<br />
The reverse osmosis process is driven by<br />
pressure, but the MegaRO’s low-pressure<br />
membranes and high-efficiency pumps make<br />
it one of the most energy efficient systems<br />
on the market. Low energy use means not<br />
only reduced carbon emissions but also low<br />
operating costs. Moreover, the quality of the<br />
waste concentrate stream from the MegaRO<br />
is still good enough for the effluent to be<br />
discharged directly into the drainage ditch.<br />
"Because the operating cost of the MegaRO<br />
is low, the recovered water actually costs less<br />
than mains water even after including capital<br />
amortization. We expect to get a payback on<br />
the £130,000 (approx. €153,000) investment<br />
in about two and half years." said Eleanor<br />
Walton, Robert Wiseman Dairies' project<br />
manager.<br />
Although the plant has only been in<br />
operation for six months, Walton had<br />
enough confidence to be talking to<br />
Veolia Water Technologies about<br />
a second plant to recycle another<br />
80m/day of wastewater. “We also<br />
want to roll out this kind of technology<br />
to some of our other sites where they have an<br />
expensive sewer discharge” she says. ●<br />
Robert Wiseman Dairies operates six<br />
dairies, 14 distribution depots and<br />
employs more than 4,700 employees.<br />
Robert Wiseman Dairies supplies a third<br />
of the UK’s milk.<br />
DAIRY<br />
RECYCLING<br />
50% OF ITS<br />
WASTEWATER<br />
2 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
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Contents
10 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
12 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
<strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017<br />
13
<strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017<br />
15
16 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
22 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
<strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017<br />
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26 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
<strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017<br />
27
28 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
34 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
36 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
38 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
40 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
44 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
46 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
48 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
50 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
54 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
<strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017<br />
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56 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
58 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
64 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
66 <strong>Renewable</strong> <strong>Green</strong> <strong>Leaders</strong> • May 2017
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