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| Nijhuis Water Technology has the know-how, technology and experience to
remove emulsions, dispersions and heavy metals from the waste water by using
coagulation, flocculation or precipitation. Impurities are processed into a
separable form after which they are separated from the waste water by
sedimentation, flotation or other separation techniques. Nijhuis Water
Technology has developed two types of flocculators for mixing waste water with
chemicals:
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A pipe
flocculator is a plug flow reactor and used where a coagulant, flocculant
and optionally a chemical for pH correction are dosed in sequence for the
removal of COD, BOD, Turbidity, Precipitants, etc. The process takes place
under highly controlled and well defined optimized conditions. |
Characteristics
of PFR:
no short circuiting no back mixing uniform mixing in the pipe cross section uniform floc growth no moving parts easy to install pH adjustment and control system sampling/monitoring valves installed as standard manufactured from HDPE or stainless steel.
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In case critical points like mixing energy, retention time and large
capacities cannot be obtained in the PFR Pipe Flocculator the NTR Reaction
Tank will be used.
Characteristics of
NTR:
Reduced short circuiting through positioning of the inlet and outlet
baffles, paddle dimensions and D:H ratio Designed for either coagulation/flocculation or dissolving of chemicals
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Nijhuis Water Technology designs and supplies auxiliary equipment for
the coagulation/flocculation process like:
For the
best results laboratory and/or pilot unit tests may have to be done, as even for
identical applications, the chemistry may be different. Nijhuis has a number of
pilot unit plants and jartest equipment available for doing tests on-site
Nijhuis Water Technology has a long term experience with
coagulation/flocculation systems. Our specialists will be pleased to advise you
on the best system and how this might be augmented with other high quality
technology from Nijhuis Water Technology to create a fully integrated water
treatment system which gives you the security you require.
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