Page 23 - Envirotubes Dewatering Manual

APPROVED Polymer Necessary: No Polymer Application le size tested (each test) ___100 mL_______
Enviorotubes® use way less polymer than other dewatering methods. Often only 25% as much. note: it is important to use exactly the
. Polymers Tested
correct feed rate.
#1: Rarely two polymers are required, one after the other. mer#1thefi_r_sXt_o_neCsaetisounpicthe__+__orA-nchioanrgicean_d__th_eE2mndulfsoiormnsa_s_trXo_n_gDflroyc.
the polymer acts like an electric + or - charge only it is chemical.
ge (i.e. .1% or .25% or .5 % or 1%) AR-380 (.2%)_____________
mls (RESULT) Fast settling solids; relatively clear filtrate_ (Number of pours
Without the polymer, the suspended particles will repel each other. this is called hindered settling.
. Procedure:
It is necessary to have a strong floc or the floc will extrude through the
Polymer sampling was conducted on 100 mL samples of sludge with a 1.85 conftaebnrtic. .
(a) AR-380 at a .2% dosage required 10 mL in order to achieve best flocculation.
With proper application the polymer stays in the tube with the solids
was durable with a relatively clear filtrate. Having a good window of durab
and is approved and even preferred by most State dNR’s.
floc did not begin shearing until 18 quick pours after the injection of AR-380.
MMENDED POLYMER __AR-380___________
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