Document zZLpDE8Vyo21BV87JxaJRR2a

Fi le Pi. sen Law ay E. J, Schuetz at Pirtcalaway DEI-509 : VCM ADSORPTION UNI TS A/7.3/76 Mooting at Furl ington Dath f'b/'Y IO April 28| 1976 J, Poarclji L, Sohapjjiell J, Jacob' ?, GeheiPur W. Mirin^off J, P,, S."avis 1'al t Present: J, Jaiajb, T., S ' jiappol 1, E, J. Srlmelz, J, Jacob ' 1. Ceneral discussion of design parameters for Plastisol units and results of proliminary nitrogen stripping trials, 2, Process Engineering will provide typical product mixes for the two Plastisol plants. 3. As vjork on nitrogen stripping progresses. Process Engineering Will develop information, noted on all.ached form, necessary Tor fina'l design of the carbon units. 4. Typical batch sizes are 8700 lbs. for "A" plant and 10750 lbs. Tor "B" plant, rather than 10,000 lbs. and 12,000 lbs. used in preliminary calculations. ; 5, Process Engineering will pursue with plant personnel possibility of pumping out Plastisol strippers in'lieu of transfer using nitrogen. Net result would be to eliminate "blow-thru" at end of transfer^ 6, General discussion of results and problems associated with "hot; jacket" technique prior to opening of Ho and Co reactors. Possibility pf using a nitrogen purge to reduce VCM concentration prior to opening. If decision is reached to use nitrogen purge, additional carbon' units will probably be required because of low VCM concentration in this stream. No work in this area by project group pending additional plant tests. EJS:vph Att, COLORITE 017416 COLORITE 017417 U REACTOR AREA 1. Reactor Wash Water '-0 2, Reactor Evacuation System 3. Wet Slurry Screens RESIN STRIPPING AREA 1. Slurry Tanks -.-CV . vA r 2. Carbon Adsorber ' fO 3. Carbon Adsorber Blowdowns DRYER AREA 1. Centrifuge Water 2. Centrifuge Water Tank Vent EPA COMPLIANCE PROGRAM SCOPE A closed collection system for the reactor wash water blowdown and evac. pump seal water is required. Closed reactor operation is anticipated. A carbon adsorption system will be required on the evacuation pump discharge. 'tv" ' Alternate equipment to replace wet screens is required. ,y V w STATUS Testing required: 1. OC coating devices 2. OC coating frequency 3. Closei reactor testing j Carbon adsorber design pending results of adsorber testing. Testing underway to establish equipment design parameters. Stripping compliance data to be collected. Determine capacity and scale up requirements for expansion. vV A closed collection system is required. Stripping rates using nitrogen are being es tab.l isiied . Additional instrurr.t-ntation required. Regeneration improvements required. Laboratory monitoring procedure imp] mooted . Proposed collection system is being let out for contractor bids. Collection of the centrifuge water blowdown is not anticipated after slurry stripping in operation. Collection of the vent vapors is not anticipated after slurry stripping in operation. EPA COMPLIANCE PROGRAM (cont'd) RECOVERY AREA 1 Recovery Area Blowdowns^ 2. Caustic Scrubber Blowdown SCOPE A closed collection system for the recovery area blowdown is required. Blowdown to the caustic wash column as makeup is proposed. 3. Wash Column A closed collection system for the wash column and filter blowdown is required. 4. Caustic Wash Column Blowdown A system for separation and recovery of the VCM, toluene and caustic is required. 5. Heavy Ends Disposal of the heavy ends from the recovery column is required. LOADING AREA 1. VCM Transfer Pump Seal Water 2. Loading Hoses/Sight Glass Blowdown s ' Vl rt '' ~( >. ^. MISCELLANEOUS ' A closed collection system will be required. X ' ' '' Aril-iv'- A closed vapor collection/treatment system is required. . ^ 1. Water Stream Stripping Evaluation and design of surge tank and stripper for all contaminated water streams is required. 2. Reactor Vapor Sampling Establish reactor sampling program for 50 batches of each resin type for compliance data. 2 STATUS System designed and in drafting stage. Laboratory determination of blowdown solids composition being made. Testing of smaller mesh filter elements to reduce column backwash frequency underway. A stripping column design is under evaluation. Alternate disposal methods being investigated. Alternates being evaluated. Alternates bei'g evaluated. Steam vs. nitrogen stripping being evaluated. Sampling program ready to commence. COLORITE 017418 i i LAB SAMPLING REQUIRED FOR EPA AUGUST 1 DEADLINE or in reactors: 50 samples per product type 50 x 4 = 200 take samples at evac pump discharge 'V' i VCM in slurry - round the clock1 sampling, twice per shift on each of three slurry tanks. Approximately two months of this sampling is required. Carbon adsorber - twice a shift sampling on outlet. Centrifuge wash water - approximately samples (\ per - product..type) required. N"- -v'`i'UiL 3 ..p'''-'- /'*' '/l.u.- COLORITE 017419 f. WATER STREAMS REQUIRING TREATMENT FOR ERA 1. Reactor Area ^ Lb/Day VCM, ppm Mean VCM ppd Reactor Wash Water 780,000 Evacuation Pump Seal Water Drain(H301A&B) 5,000 10-20 5-350 12 _1 2. Loading Area Total 785,000 13 VCM Transfer Pump Seal Water 3. Carbon Adsorber Blowdown 3,000 400-800 1.2 Carbon Adsorber Drains 4. Recovery Area - 7,200 500-1,000 5.4 A. Blowdown (H302) Recovery vacuum pump seal water drain 13,000 300-700 Gaa Holder Overflow (D340) 6,000^ 400-800 Gas Holder K.O. pot (C350.1) 3,000-5,000 500-4,000 Crude Tank Drain (C352) 0-50 2,300-4,000 Recovery Area VCM Pump Seal Water 20,000 400-800 Caustic Scrubber Blowdown (C346) 4,500 8,000 Total 48,500 - 50,550 B. Column Back Wash Water Wash Column (C344,5) Water Wash Column Filter (L327,8) 525,0002 90,000 200-750 300-1,700 5.5 3.6 9 nil 12 52 83 250 90 Total 615,000 340 Notes: 1. Basis - 8 reactors and 18 batches per day 2. Improved recovery flow control should reduce this amount. 3. Calculated quantity. COLORITE 017420 i WATER STREAMS REQUIRING TREATMENT FOR EPA /n . - L ' c. e 1. Reactor Area Lb/Day VCM, ppm Mean VCM ppd Reactor Wash Water 780,000 10-20 12 Evacuation Pump Seal Water Drain(H301A&B) 5,000 5-350 _1 Total 785,000 13 2. Loading Area VCM Transfer Pump Seal Water 3. Carbon Adsorber Blowdown 3,000 400-800 1.2 Carbon Adsorber Drains 4. Recovery Area 7,200 500-1,000 5.4 A. Blowdown (H302) Recovery vacuum pump seal water drain 13,000 Gas Holder Overflow (D340) 6,0003 300-700 400-800 Gas Holder K.O. pot (C350,l) Crude Tank Drain (C352) Recovery Area VCM Pump Seal Water Caustic Scrubber Blowdown (C346) 3,000-5,000 500-4,000 0-50 2,300-4,000 20,000 400-800 4,500 8,000 5. 3.6 9 nil 12 52 Total 48,500 - 50,550 83 B. Column Back Wash Water Wash Column (C344,5) Water Wash Column Filter (L327,8) 525,0002 90,000 200-750 300-1,700 250 J50 Total 615,000 340 Notes: 1. Basis - 8 reactors and 18 batches per day .2 Improved recovery flow control should reduce this amount. 3. Calculated quantity. COLORITE 017422