Matakuliah : S0372 – Kimia Teknik Sipil
Tahun
: Ganjil 2007/2008
PROCESSING OF WATER AND
PROTECTION OF ENVIRONMENT
PERTEMUAN 13
ANTECEDENT
Problem of amount, quality of, recycle and
contamination of water represent very complex
problem, so that to chosen from various alternative of
is source of optimum processing and water of facet of
is expense of, needed by study which circumstantial
enough.
Decision is usually taken on the basis of consideration
of plan its use in product or process of product, etc.
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PROCESSING OF WATER
Processing of water (water conditioning) have to be arranged as
according to plan usage of that water.
Every industry have conditions of processing of its own water
for example water for the wash of its textile have to zero, in
order not to happened precipitation of calcium soap and
magnesium at clothes.
Calcium salt, iron and magnesium can cause the happening of
precipitation which do not desire at colourant additional
admixture in textile industry and paper.
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Method
Purification and mellowing of water can be conducted variously,
base on plan usage of itself water.
Mellowing term (softening) used for process removing or
lessening kesadahan of water.
Purification
namely
remove
organic
materials
and
mikroorganisme of water.
Classification sometime vitally and used at the same time with
precipitation in course of mellowing of cool water.
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Water Waste Urban
Line of least resistance for the dismissal of that waste is by
thinning it; that waste is thrown into body irrigate like lake and
river of yg after some times organic waste will fall to pieces by
oxygen of yg there are that underwater.
But way of this thinning cannot be let again, including at place
which that thing admit of to be conducted without endangering.
Existing water this time have fallen short again to thin waste of
yg its volume have in such a way many, effect of growth of
industry and resident.
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Active Mud represent most effective method to remove
suspensions materials and also is dissolve the than waste
water. Active mud contain aerobik mikroorganisme able to
digest raw waste.
Some of active mud which come from former processing
included into raw waste, and air blown sufficiently into him and
in moderation.
Way of dismissal of solid additional chemical result of sweeping
of this process depended from local condition. Sometimes that
solid additional chemical buried, to be burned, or sold as
manure after filtered and dried.
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