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India brewery selects ZeeWeed for water treatment & T-MBR for recycling effluent

Challenge

A  brewery   in   western  India    was  facing    a   dual challenge:  to  upgrade  its  existing  water  treatment plant (WTP) and  to recycle the  effluent waste from its existing  wastewater   treatment   plant  (WWTP)  250 m3/day  of  wastewater is  supplied for treatment,  but that  water has  biochemical  oxygen   demand  (BOD), chemical   oxygen   demand  (COD),  &  total  dissolved solids (TDS) that are quite  high for a reuse application.

Solution

For the  WTP, SUEZ’s ZeeWeed 1500 ultrafiltration (UF) membranes  were installed,  followed by an  activated carbon filter (ACF), and  reverse osmosis (RO). This UF system achieves 95% recovery with permeate capacity of 75 m3/hr. The product water after this treatment has a silt  density index  (SDI) of <3 and  turbidity of <1. The total flow rate for the WTP system is 1200 m3/day.

After  assessment  of  the   customer’s   input,   it   was assumed   that   a   majority   of   the    organics   were in  soluble  form  and   hence  could   be   removed   by tertiary   membrane  bioreactor   (T-MBR)   technology to  meet  RO  feed   quality   of  COD  <20  mg/L.   SUEZ proposed a  T-MBR, RO and  dissolved  gas system  to achieve the  required treated water quality,  and  T-MBR with   RO   to   achieve   phosphate  reduction.   T-MBR features  ZeeWeed  500  and   can   accommodate  total suspended solids  (TSS)  of  100  mg/l, most of  which comes from clarifier overflow.

 

Table: Project Summary

 


End User: Brewery
Location : Aurangabad, Maharashtra, IN
Commissioned: 2016
Application : WTP upgrade; ETP recycling
Feed water Source: Raw Water; ETP wastewater
Feed water quality: BOD -30 mg/L; COD <250 mg/L; TDS < 2100 ppm (ETP)
Product Quality: TDS <250 ppm (fit for recycling)
Flow rate: 1200 m3/day (WTP); 250 m3/day(ETP)
Technology: ZeeWeed 1500;T-MBR ZeeWeed 500

Results

The   footprint  of   the    system   is   less  than   that of  conventional  treatment. T-MBR  has a  recovery rate   of    90-95%   and    the    RO    system    has   a recovery rate of 75-80%.

With the  use of T-MBR technology, the  COD, BOD & TDS  values  of  the   effluent treatment  plant  (ETP) water were considerably  reduced and  the  product was reused as process water. SUEZ is a  pioneer in the    use  of   hollow    fiber   membranes   for  water treatment,  with  more  than 100  drinking water, and
220 wastewater installations globally.


To learn how  SUEZ can  help  solve  your wastewater challenges,  contact  your  SUEZ   representative   or visit us at www.suezwatertechnologies.com.

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