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Title: Characterization of organics in the feed streams for the H/F Effluent Treatment Facility

Abstract

Analysis of weekly samples from the F- and H-area treblers indicates that tri-n-butylphosphate (TBP) is the major organic species in the feed to the F/H Effluent Treatment Facility (ETF). Concentrations up to 100 mg/L were observed, with an average of 50 mg/L from F-area and 3 mg/L from H-area. Normal paraffinic hydrocarbons (NPH) are present in lesser amounts, ranging up to 4 mg/L. These two species, both foulants of the reverse osmosis (RO) membranes, account for almost all of the dissolved organic carbon present in the samples. Samples from the sources which feed the treblers (and will feed the ETF) indicate that all eight canyon evaporators contribute TBP. None of the four tank farm evaporators contribute TBP. If TBP is to be removed at the sources, either the overhead streams from a number of evaporators will have to be piped to one or two central locations for treatment, or up to eight individual treatment points would have to be maintained. 6 refs., 5 tabs.

Authors:
Publication Date:
Research Org.:
Du Pont de Nemours (E.I.) and Co., Aiken, SC (USA). Savannah River Lab.
Sponsoring Org.:
DOE/DP
OSTI Identifier:
6326638
Report Number(s):
DPST-87-690
ON: DE91005115; TRN: 91-004187
DOE Contract Number:
AC09-89SR18035
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES; HYDROCARBONS; ECOLOGICAL CONCENTRATION; ORGANIC COMPOUNDS; CHEMICAL COMPOSITION; SAVANNAH RIVER PLANT; WASTE PROCESSING; TBP; CHEMICAL EFFLUENTS; EVAPORATORS; MONITORING; WASTE PROCESSING PLANTS; BUTYL PHOSPHATES; ESTERS; INDUSTRIAL PLANTS; MANAGEMENT; NATIONAL ORGANIZATIONS; ORGANIC PHOSPHORUS COMPOUNDS; PHOSPHORIC ACID ESTERS; PROCESSING; US AEC; US DOE; US ERDA; US ORGANIZATIONS; WASTE MANAGEMENT; 540320* - Environment, Aquatic- Chemicals Monitoring & Transport- (1990-); 052001 - Nuclear Fuels- Waste Processing

Citation Formats

Oblath, S.B. Characterization of organics in the feed streams for the H/F Effluent Treatment Facility. United States: N. p., 1987. Web. doi:10.2172/6326638.
Oblath, S.B. Characterization of organics in the feed streams for the H/F Effluent Treatment Facility. United States. doi:10.2172/6326638.
Oblath, S.B. Mon . "Characterization of organics in the feed streams for the H/F Effluent Treatment Facility". United States. doi:10.2172/6326638. https://www.osti.gov/servlets/purl/6326638.
@article{osti_6326638,
title = {Characterization of organics in the feed streams for the H/F Effluent Treatment Facility},
author = {Oblath, S.B.},
abstractNote = {Analysis of weekly samples from the F- and H-area treblers indicates that tri-n-butylphosphate (TBP) is the major organic species in the feed to the F/H Effluent Treatment Facility (ETF). Concentrations up to 100 mg/L were observed, with an average of 50 mg/L from F-area and 3 mg/L from H-area. Normal paraffinic hydrocarbons (NPH) are present in lesser amounts, ranging up to 4 mg/L. These two species, both foulants of the reverse osmosis (RO) membranes, account for almost all of the dissolved organic carbon present in the samples. Samples from the sources which feed the treblers (and will feed the ETF) indicate that all eight canyon evaporators contribute TBP. None of the four tank farm evaporators contribute TBP. If TBP is to be removed at the sources, either the overhead streams from a number of evaporators will have to be piped to one or two central locations for treatment, or up to eight individual treatment points would have to be maintained. 6 refs., 5 tabs.},
doi = {10.2172/6326638},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Sep 28 00:00:00 EDT 1987},
month = {Mon Sep 28 00:00:00 EDT 1987}
}

Technical Report:

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  • The Waste Acceptance Criteria (WAC) procedures define the rules concerning packages of solid Low Level Waste (LLW) that are sent to the E-area vaults (EAV). The WACs tabulate the quantities of 22 radionuclides that require manifesting in waste packages destined for each type of vault. These quantities are called the Package Administrative Criteria (PAC). If a waste package exceeds the PAC for any radionuclide in a given vault, then specific permission is needed to send to that vault. To avoid reporting insignificant quantities of the 22 listed radionuclides, the WAC defines the Minimum Reportable Quantity (MRQ) of each radionuclide asmore » 1/1000th of the PAC. If a waste package contains less than the MRQ of a particular radionuclide, then the package`s manifest will list that radionuclide as zero. At least one radionuclide has to be reported, even if all are below the MRQ. The WAC requires that the waste no be ``hazardous`` as defined by SCDHEC/EPA regulations and also lists several miscellaneous physical/chemical requirements for the packages. This report evaluates the solid wastes generated within the F/H Effluent Treatment Facility (ETF) for potential impacts on waste certification.« less
  • The F and H Area Effluent Treatment Facility is essentially a four-stage process that will decontaminate the waste water that is currently being discharged to seepage basins in the Separations Areas. The stages include pretreatment, reverse osmosis, ion exchange, and evaporation. A series of tests were performed at Carre, Inc. (Seneca, SC) from March 5 through March 13, to determine the usefulness of ultrafiltration (UF) in the pretreatment stage of the ETF. The results of that testing program indicate that UF would be an excellent means of removing entrained activity from the 200 Area process effluents. Hyperfiltration (HF) was alsomore » tested as a means of providing an improved concentration factor from the reverse osmosis stage. The results show that the membranes that were tested would not reject salt well enough at high salt concentrations to be useful in the final reverse osmosis stage. However, there are several membranes which are commercially available that would provide the needed rejection if they could be applied (dynamically) on the Carre support structure. This avenue is still being explored, as theoretically, it could eliminate the need for the F/H ETF evaporator.« less
  • The decontamination factor obtained in the filtration stage of the F/H Effluent Treatment Facility (F/H ETF) can be increased by the addition of charged filteraids or ion exchange resins. In conventional treatment, direct filtration of the 200-Area effluents requires filteraid addition. Filtration DFs are enhanced due to the ion exchange properties of these resins and filteraids, and in an accident scenario (high activity, low dissolved solids stream) this additional SF will lessen the load on downstream processes. In treatment of daily effluents (low activity, high dissolved solids stream) the impact on SF will not be as important (at reasonable dosagemore » levels). In pressure leaf tests cycle times, filtration rates and filtrate quality were all good. The minimal level of precoal (0.1 lb/ft/sup 2/) was applied and run with body feeds between 25 and 100 ppM. Final choice of filteraid will depend on a combination of factors: filtration rate, filtrate quality, DF, waste disposal - volume and method.« less
  • As required by the South Carolina Department of Health and Environmental Control under NPDES Permit SC0000175 (Special Condition {number sign}36), a biological monitoring program was approved on February 26, 1987, and initiated in July 1987 to assess the effects of the H-016 outfall (F/H Effluent Treatment Facility) on the biota of Upper Three Runs Creek. This report summarizes the results of data collected before the start-up of the ETF and data collected during the first six months of operation, as requested by SCDHEC. The data indicate that there have been no measurable adverse impacts on the stream community after themore » first six months of ETF operation. However, the ETF was operating at less than 25% of design capacity during the first six months of operation, and further studies will be necessary to determine if the effluent will impact the stream under normal operating conditions. Toxicity tests conducted on the ETF effluent indicate that the effluent should not be toxic after mixing with Upper Three Runs Creek. 11 refs., 1 fig., 1 tab.« less
  • A biological monitoring program was initiated in July 1987 to assess the effects of the F/H ETF on the biota of Upper Three Runs Creek. The data indicate that there have been no measurable adverse impacts on the stream community after the first six months of ETF operation. However, the ETF was operating at less than 25% of design capacity during the first six months of operation, and further studies will be necessary to determine if the effluent will impact the stream under normal operating conditions. Toxicity tests conducted on the ETF effluent indicate that the effluent should not bemore » toxic after mixing with Upper Three Runs Creek. 11 refs., 1 fig.« less