Document MGzjg7Rj8JRQeep40qjqReg8L
CHEMICALS
j
INDUSTRIES
INTEROFFICE / LAKE CHARLES
TO FROM
Distribution M. K. Davis
DATE
January 24, 1983
'
SUBJECT
Sodium Formate Plant Process
Improvements
On January 18, 1983, a meeting was held to discuss the status of the Sodium Formate Process Improvements Program. In attendance were C. Ardoin, J. D. Jobe, B. Salter, L. Grubb, K. Komoroski, R. M. Hall, C. Dorsett, M. Wood, C. P. LeBlanc, J. B. Alleman, R. P. Lynch, B. Campbell, and M. K. Davis.
The status of the program- established at the January 4, 1983 meeting was reported on by those in attendance.' ;
1. The Lab has completed the grab sample tests of the Sodium Formate unit with and without acid addition. Without acid addition and low bleach excess, sodium formate destruction was poor at the exist of retention tank No. 3. Sodium formate destruction improved with a high bleach excess (12 plus gpl bleach), but performance was fair at best when sampled out of retention tank No. 3. Formate destruction improved appreciably when the effluent from retention tank No. 3 combined with the less basic secondary' scrubber-stream. This improved performance was only evident when the pH of the combined streams fell below 12.0.
With acid addition, formate destruction was very effective. In each case, sodium formate levels were negligible at the exist of retention tank No. 1. The following tables summarize the destruction of sodium formate with and without acid. It should be noted that outfall 118 is the combination of the sodium formate effluent from retention tank No. 3 and the secondary scrubber stream.
TABLE I
Date
Rt. Tk. 3 pH
1-6-83
12.7
1-10-83
12.6
1-11-83 C1)l-13-83 fl)l-14-83
12.4 8.6 8.5
Feed 1587 2711 2534 1917 2133
PPM TOC Rt. Tk. 1 1289 1628 1377 60 120
Rt. Tk. 3 948
1082 919 112 144
Rt. Tk. 3 Bleac: Exces
1.16
7.83
10.3
8.2
6.3
SL 049582
Sodium Formate Plant Process Improvements January 24, "1983 Page 2
TABLE II
Outfall 118 Date__________________________ pH______
'M Sodium Formate Outfall 118
1-6-83
. , 10.0
100
1-10-83
12.4
800
1-11-83 ^1^1-13-83 (1)l-14-83
10.1 8.8
200 N.D. N.D.
Outfall 118 Bleach Excess
1.42 5.97 11.8 8.5 6.2
CO CO
Acid addition. Sodium formate /2n negligible.
Outfall 118 is the combination secondary scrubber.
els out of retention tank No. 1 are the sodium formate effluent and the
2. It was recommended that, for the monitoring of sodium formate performance, bleach killed grab samples should be used. In a 24 hour composite, the reaction continues until the bleach is neutralized; when a sodium formate and TOC analysis is finally performed, the composite reflects the amount of TOC present at that time and not the true performance of the Sodium Formate unit over a 24 hour period. The composite would still be retained for EPA purposes.
3. Economic estimates on the two options for the static mixer system were presented. Option one would consist of two static mixers to replace the agitated tanks. Some piping modifications would be necessary to allow the formate stream to feed into the top of retention tanks 1 and 2. The investment would be approximately $66,683. Option two would consist of installing the static mixers before the oxidation tank (tank 10) and installing a titanium clad lining in tank 10 which would serve as a degasser. No piping modifications would be necessary to flow into the retention tanks. The investment for this option is approximately $35,893. Based on the economics and other salient features such as a degasser, option two was chosen.
The following program was established by those in attendance.
1. Since caustic is the major contributor to high pH in the sodium formate stream, it was suggested that the sources of caustic contribution in the bleach stream and in the chloral treatment stream be examined. If the caustic levels can be controlled in these streams, it may increase the efficiency of the Sodium Formate unit. The Sulfur Chloride unit to recover tail gases will address this problem in part when it comes on stream. (Process)
SL 049583
'Sodium Formate Plant Process Improvements
January 24, 1983
Page 3"
2. It was proposed that the Lab set up a test program to determine the optimum pK and bleach excess to operate the Sodium Formate unit more effectively. These tests should be a prelude to establishing a program to operate the Sodium Formate unit more efficiently. (Lab)
3. When running without acid `(or at pH levels of better than 12.0), 12.0 plus gpl bleach excess"is needed to destroy formate. Economically, high bleach excesses are not acceptable. The question still remains, "Is a high bleach excess acceptable environmentally?". Process Engineering will contact Jim Wyche in the Environmental department for a response. (Process)
4. Work will proceed on getting retention tank No. 1 relined with Semag. (Engineering)
The date and time for the-next meeting was not set but will probably occur in
two to three weeks.
'1
/vein
Distribution:
Those in attendance B. K. White R. J. Whitaker E. J. Tullier J. A. Hart J. Wyche D. Kaines H. J. Hoenes
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31A-173 (Rev. 1/80)
Analysis of:
Sc>dturn
PPG INDUSTRIES, INC. CHEMICAL DIVISION-U.S.
LAKE CHARLES, LOUISIANA
Laboratory Department
Datei
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Chemis t/Analys t: Jzj&JL,
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PPG INDUSTRIES, INC. CHEMICAL DIVISION-U.S.
LAKE CHARI.ES, LOUISIANA
Laboratory Department Date:
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Chemist/Analyst: r~4n l ^
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(Hcv. i4/72) Analysis of:
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INDUSTRIAL CNKMUWL DIVISION LAKK CHAUI.lT., LOUISIANA
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o$3 pp/y\. 7Wpr
ZL . StS-Q-.pftSNL 7>7_pi
SL 049594
'1A-17.t>-1 (Rev. i/72)
Analysis of: ^ (in
pH AJo.0 CLL,
Pix; INUUSTKTKS, TNG.
INDUSTRIAL CIIKMIGAL DIVISION LAKK CHAKLKG, T,GUIS TANA
La.boraLorv I'cpartmrr.t.
lkLl.t.*:
S'f /% 7->
' L. t^T k
Analysl.: ft d^oolCs____
filing Data:
rori^nCfg.
S
TSU.
I Vfe^^7b. ^Pnj**a%j real
Rsd'^JjJrO Tfc*
OrfaJa ~!7rne_.
An?.
9-3c ft. m.
/' 30 P.ftl-
A
%>
Nkoei, atI
7 S.00 ,/yar
4j^j( *f- *&4s> ppOvj ,45D.pp
0 to
*
St 049595
jIA-173-1 (licv. li/72)
prc; iNnuiiTKjKS, tnc. INDUoTHIAL CHKMlf'AL DIVISION
LAKK CHAULKH, LOUISIANA
Laboratory I'opartnrnt
Kite: _
Analyst: tiling Data:
J~Vrnt<A
C^jtA-JknU ua^<^:
-------------- -----------------------------------
&3oA/V'_
pti --------------- pj _
*3
rt ^.^P/h. idzMkx
$. (a
*1
Ul.
Zl
*1
TK,
J.'dv P./H
?.4
flC/, -------- ----*--/-/--------
ToC.f
$ pnYW\
n Mip^,
<23^ pi>/w --r~r^----------
_Z3i>
1,38 m*
SL 0A9596
(Hev. U/72)
Analysis of:
o[? trtJL b
PPC; INDUOTKIKS, INC. INDUSTHIAL CHKMlOAL DIVIO LON
LAKK CHAKUr., T.OUISTANA
Laboratory l'(.'partin':r.t
1U1. srf l&
jy-tTpi
Analyst:
Filing Data:
QteJz J L rrys
iQ-.^aA/n. !' (TV /V).
roc. nn\j
k) ^o^lSju ItyujJrfr l&uJ SMI*.
2 tf&bx^ (Ln^y
il i^tZduLALa
c-. A '/> itjlmL
m SL 049597___
51A-17?-1 (Hev. ij/72)
ppc; imiuotlils, inc. INDUSTRIAL CUKHICAL DIVIO ION
LAKK CHAKLKO, LOUISIANA
Laboratory Mopart.mrr.t
/&{
Analyst: .JUjAaoite
Analysis of: r!U*ul~ ^
Filing Data:
U3fl-oA--. i^h9-*'T?r*SsJL^ LLhx-^-
*kfr&.Q^Arbi*'-- CA^hrir^^- ______________ __
-
%-ILaJr TT/v\0^
~T&d----------------------- 1----------- 1
--------
id'.iZArn.
/r
*.l , Tk^U&j^U- i dt /? m. F
^ fSt\ IAA. >
I)A^A^>VjLX<^rnJ
^4^ SL 049598
f
r>iA-n:>-i
(Mev. k/12)
INDULAPSPKTCKR: IACINLHDAUCRII>IMKTSMK,1ICFAIS,OL, UDIINSIVCrAI.SNIAON Lateralorv l^partm-nt
Analysis of: D&JZj&^tU^, CiLA-Zh9^M-- _
Analyst:
li*k-t>alCjS
Filing Data:
-
S iorv\ hjitj1
Ui, _-7iv"^
TbC, hpw^vu
Tic. 9 FJ
7Z /6 KAclbvJ-
e^O-Jjuu^yru
?-7iT A/H.
#- 30 4. Al.
?.' &0 4./T).
(o44 rp/p^wv .
rr ----------3-.^i ^ks b &-----------
*l KtJiLZ&ru Tk.ZLbj&U--
!*x Rdi^d^fk. ^AusaU
/d`4 A.m. / /r p./k.
^41 p> r*v-> If
SL 049599
'jIA-173-1 (Kcv. k/72)
Analysis of:
pro intnt.tujks, inc. INDUSTRIAL CHKMIOAL DIVISION
LAKK CHARLKS, T.OUISTANA
LaboraLorv I'cparimml;
lkil.c: Analyst.:
`Jjlf&hL
R k-S'
Piling Data:
i,u-75 O/iy^ ,
g^rO~
yp
pis. * / /?gfe~XTMy rfc.
UM**j~ U
2^.
_/j-Oa
Id'tZAm.
/`/ST A/n
nj?Q y. AL
i ll-pf./W_<
Aim..,
EJLgij Sufcfr.*
. P. .
SL 0A9600
f ilA-173-1
(Rev. ^/72)
Analysis of: PlAni S
ppc; irmu:;Tiw.s, inc. INDUSTRIAL ClIKMIOAL DIVISION
LAKK CKARLIT., I.OUISTANA
Laboratory I'cpart.irrr.t
YlAs-le
UlU:- __ &Jr-8Zi.
Analyst: (2-C/ZAP.L-l-O /fAiUP
Filing Data: k/ry
Uaj`/4-
-fp/?