Improving
rural water quality
Moving to the country to get away from it all sometimes results
in a trade off. Often it means leaving behind high quality city
water for rural water of unknown quality.
Some rural communities depend on treated surface run-off
for their drinking water and these water treatment facilities
face common and recurring problems including high turbidity,
microbial contamination, and excessive by-products of chlorination.
With Alberta adopting more stringent water quality standards,
some communities are now faced with having to upgrade or replace
their equipment. Both options can be expensive.
Researchers with the Alberta Research Council (ARC) believe
it is possible to meet the new standards by retrofitting existing
water treatment systems to include oxidation and biological
filtration processes. By adding ozone to the water, complex
dissolved organic impurities can be partially broken down
or oxidized. Biological filters (mainly sand-beds) are then
able to further break down and remove this organic matter.
Small communities could easily implement this relatively economical
retrofit. Water quality benefits include lower turbidity,
a reduced chlorine requirement (which results in less harmful
by-products), and freedom from objectionable taste and odour.
A final ultra-violet disinfection step would also be more
effective as a result of this novel oxidation-biofiltration
process. With ARCs help, living in the country just
got better.
The challenge
continues
Protecting water re-sources can
be a challenge, even in places where we expect pure water.
A five-year research program conducted in Cypress Hills Provincial
Park in Southern Alberta demonstrates how challenging this
task can be.
In one of the studies, the Alberta
Research Council (ARC) worked alongside government, community
and industry stakeholders to compare continuous and rotational
livestock grazing effects on riparian (within the flood plain
and slightly beyond) vegetation and water quality. Results
support previous research showing that livestock prefer grazing
in riparian areas due to availability of water and abundance
and quality of vegetation. Although livestock generally consumed
more riparian zone forage than was desirable, ARC researchers
found that livestock grazing generally had a very small impact
on water quality.
Research also showed that even
supposedly pure water isnt always clean.
Isolated springs in the Cypress Hills often exhibited elevated
levels of nitrogen and phosphorus that may contribute to reduced
water quality downstream.
Mining water effluent
Researchers at the Alberta Research
Council (ARC) are working to create a new mindset by examining
ways to mine water effluent before it is released into the
environment. They hope to capture potentially valuable nutrients
and chemicals that are present in many effluents.
The approach builds on the success
that many effluent producers have achieved with tertiary wastewater
treatment technologies. Although these technologies can now
produce sludge that can be disposed of in an environmentally
sustainable manner, ARC researchers want to go one step further
and remove the valuable nutrients and chemicals dissolved
in the water. Capturing these compounds can help companies
save money and improve the ecosystem.
ARC is looking to partner with
an industrial plant and demonstrate that thinking outside
the box can be both economically viable for the owners
and beneficial to the environment.
Water for irrigation
Agriculture is the single largest
user of water in Alberta. There are 13 irrigation districts
in Southern Alberta supplying water to about 1.3 million acres
growing more than 50 different crops. Irrigating such a large
amount of common and specialty crops significantly increases
the economic returns to farming communities. But not everyone
wishing to irrigate is assured of an ample supply of water.
Since the amount of water is limited, it has to be apportioned.
This is particularly significant during dry years. In order
to allow farmers to plan their crops, projecting the available
water supply becomes critically important. Thus crop growers
are looking for ways to conserve water and protect its quality
by using appropriate irrigation equipment, tillage practices,
maintaining buffer strips, avoiding over-fertilization and
proper use of pesticides. Such steps help ensure that the
available water resources for irrigation can be managed on
a sustained basis.
Before the barbecue
Barbecuing pork is more common
today than it was a decade ago. This growing trend is partly
due to Alberta Porks efforts to familiarize Albertans
on the nutritional value of pork. But getting people to eat
and enjoy pork is the easy part of their job. As with other
industries, the challenge for the pork industry is demonstrating
to the public that their business is sustainable economically,
environmentally and socially.
An important issue facing Alberta
Pork and the provinces 2,000 pork producers is paying
attention to the environment, and that means managing manure
effectively. This includes paying careful attention to lagoon
construction, locating buildings on low permeability soils,
and incorporating manure into the land away from lakes or
streams and at proper application rates. In Alberta, regulations
and good working relations between producers, regulators and
the public have helped this market grow.
Water for food production
Most Canadians equate Alberta with
oil and natural gas. However the largest and fastest growing
part of the provinces manufacturing industry is food
and beverage processing. Today this sector accounts for about
a quarter of the provinces manufacturing and contributes
around $10 billion per year in shipments. Food and beverage
processing also employs nearly 20,000 people.
Alberta has been blessed with a
lot of productive agricultural land and consequently the food
and beverage industry has the capacity to continue to grow.
With only nine percent of Canadas population, Alberta
accounts for 50 percent of Canadas beef supplies and
25 percent of Canadas agricultural production. A key
reason for Albertas success in food processing has been
an ample supply of high quality water and the continuing growth
in the food and beverage sector will depend on adequate water
supplies.
Contented cows and happy
fish
ows and Fish is an organization
dedicated to helping cattle producers restore and maintain
the health of wetlands or riparian areas. These areas are
the transitional zones between the river or creek and uplands,
generally the flood plains and small transitional strips.
Riparian areas are important since
they harbor a large part of our biodiversity. They store floodwater
during periods of high runoff and help recharge aquifers,
and protect fish habitat. Riparian areas benefit everyone,
the rancher, the fisherman, and Mother Nature.
Cows and Fish have produced an
easy-to-apply field workbook for ranchers and farmers. It
includes checklists for assessing the health of these important
riparian areas. They also help track the progress of corrective
measures in order to obtain results. |