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Fr9de98b.Pdf Federal Register / Vol. 63, No. 236 / Wednesday, December 9, 1998 / Proposed Rules 68037 (ii) The required mass removal is downstream of the point of Ci=Concentration of VOC at the point of calculated by summing the required determination with adjustment for determination, parts per million by mass removal for all wastewater streams concentration change made according to weight. combined for treatment when § 60.782(b)(6) of this subpart. Fri=Fraction removal value of a VOC. complying with § 60.779(g)(1)(i) or (g)(2) Concentration measurements to Follow the procedures in § 60.778 of this subpart. determine AMR shall be taken at the of this subpart to develop a stream- (5) The AMR calculation procedure inlet and outlet to the treatment process specific list of VOC. Follow the for non-combustion treatment processes and as provided in paragraph (a)(7) of procedures in appendix J of this including closed biological treatment this section for a series of treatment part to determine Fr values. processes. The AMR shall be calculated processes. Wastewater samples shall be 10 9=Conversion factor, mg/kg * l/m 3. as follows: collected using sampling procedures (4) The required mass removal is which minimize loss of organic calculated by adding together the = − AMR() QMWa QMW b () Eqn WW10 compounds during sample collection required mass removal for each Group 1 Where: and analysis and maintain sample wastewater stream to be combined for AMR=Actual mass removal of VOC integrity per § 60.782(b)(5)(ii) of this treatment. achieved by treatment process or subpart. The method shall be an (5) Actual mass removal calculation series of treatment processes, analytical method for wastewater which procedure for open or closed aerobic kilograms per hour. has that compound as a target analyte. biological treatment processes. The Samples may be grab samples or actual mass removal (AMR) shall be QMWa=Mass flow rate of VOC in wastewater entering the treatment composite samples. Samples shall be calculated using Equation WW12 as process or first treatment process in taken at approximately equally spaced specified in paragraph (f)(5)(i) of this a series of treatment processes, time intervals over a 1-hour period. section when the performance test is kilograms per hour. Each 1-hour period constitutes a run, performed across the open or closed QMWb=Mass flow rate of VOC in and the performance test shall consist of aerobic biological treatment process wastewater exiting the last a minimum of 3 runs. only. If compliance is being treatment process in a series of (2) Flow rate. Flow rate measurements demonstrated in accordance with treatment processes, kilograms per to determine RMR shall be taken at the paragraph (a)(7)(i) of this section, the hour. point of determination or downstream AMR for the series shall be calculated (6) Compare RMR to AMR. When of the point of determination with using Equation WW13 in paragraph complying with § 60.779(f)(2)(i) or (f)(3) adjustment for flow rate change made (f)(5)(ii) of this section. (This equation is of this subpart, compare the RMR according to § 60.782(c)(4) of this for situations where treatment is calculated in Equation WW9 to the subpart. Flow rate measurements to performed in a series of treatment AMR calculated in Equation WW10. determine AMR shall be taken at the processes connected by hard-piping.) If Compliance is demonstrated if the AMR inlet and outlet to the treatment process compliance is being demonstrated in is greater than or equal to the RMR. and as provided in paragraph (a)(7) of accordance with paragraph (a)(7)(ii) of When complying with § 60.779(g)(1)(i) this section for a series of treatment this section, the AMR for the biological or (g)(2) of this subpart, compare the processes. Flow rate shall be determined treatment process shall be calculated RMR calculated in Equation WW9a to using inlet and outlet flow measurement using Equation WW12 in paragraph the AMR calculated in Equation WW10. devices. Where the outlet flow is not (f)(5)(i) of this section. The AMR for the Compliance is demonstrated if the AMR greater than the inlet flow, a flow biological treatment process used in a is greater than or equal to 95-percent measurement device shall be used, and series of treatment processes calculated mass removal. may be used at either the inlet or outlet. using Equation WW12 shall be added to (f) Open or closed aerobic biological Flow rate measurements shall be taken the AMR determined for each of the treatment processes: Required mass at the same time as the concentration other individual treatment processes in removal (RMR) option. This paragraph measurements. the series of treatment processes. (f) applies to the use of performance (3) Calculation of RMR for open or (i) Calculate AMR for the open or tests that are conducted for open or closed aerobic biological treatment closed aerobic biological treatment closed aerobic biological treatment processes. The required mass removal of process as follows: processes to demonstrate compliance VOC for each Group 1 wastewater AMR= QMW ∗ F() Eqn WW12 with the mass removal provisions for stream shall be calculated using the a bio VOC. These compliance options are following equation: Where: specified in § 60.779(f)(2)(i) and (f)(2)(ii) AMR=Actual mass removal of VOC ρ n achieved by open or closed of this subpart. The owner or operator = ∗ RMR Q∑() Ci Fr i () Eqn WW11 biological treatment process, shall comply with the requirements 109 specified in paragraphs (f)(1) through i=1 kilograms per hour. (f)(6) of this section. Some compounds Where: QMWa=Mass flow rate of VOC in wastewater entering the treatment may not require a performance test. RMR=Required mass removal for process, kilograms per hour. Refer to paragraph (h) of this section treatment process or series of Fbio=Site-specific fraction of VOC and Table 14 of this subpart to treatment processes, kilograms per biodegraded. Fbio shall be determine which compounds may be hour. exempt from the requirements of this determined as specified in ρ=Density of the Group 1 wastewater paragraph (f). paragraph (h) of this section and 40 (1) Concentration in wastewater stream, kilograms per cubic meter. CFR part 63, appendix C. Follow stream. The concentration of VOC shall Q=Volumetric flow rate of wastewater the procedures in § 60.778 of this be determined as provided in this stream at the point of subpart to develop a stream-specific paragraph (f)(1). Concentration determination, liters per hour. list of VOC. measurements to determine RMR shall i=Identifier for a compound. (ii) Calculate AMR across a series of be taken at the point of determination or n=Number of VOC in stream. treatment units where the last treatment 68038 Federal Register / Vol. 63, No. 236 / Wednesday, December 9, 1998 / Proposed Rules unit is an open or closed aerobic biological treatment process as follows: = − − AMR QMWa() QMW b()1 F bio () Eqn WW 13 Where: streams combined for treatment for the 40 CFR part 63, appendix C. (stream- AMR=Actual mass removal of VOC purposes of this paragraph (g)(1). specific list) (The symbol Fbio represents achieved by a series of treatment (2) Compare RMR to AMR. the site specific fraction of an individual processes, kilograms per hour. Compliance is demonstrated if the AMR VOC that is biodegraded.) The owner or QMWa=Mass flow rate of VOC in is greater than or equal to RMR. operator shall calculate Fbio for the VOC wastewater entering the first (h) Site-specific fraction biodegraded on Table 14 of this subpart using the treatment process in a series of (Fbio). The VOC are divided into two sets defaults provided for first order treatment processes, kilograms per for the purposes of determining whether biodegradation rate constants (K1) of hour. Fbio must be determined, and if Fbio must this subpart and follow the procedure QMWb=Mass flow rate of VOC in be determined, which procedures may explained in Form III of 40 CFR part 63, wastewater exiting the last be used to determine compound- appendix C, or any of the procedures treatment process in a series of specific kinetic parameters. These sets specified in 40 CFR part 63, appendix treatment processes prior to the are VOC in Table 14 of this subpart, and C. biological treatment process, all other VOC. (ii) Biological treatment processes that kilograms per hour. (1) Performance test exemption. If a are not enhanced biological treatment biological treatment process meets the Fbio=Site-specific fraction of VOC processes. For biological treatment requirements specified in paragraphs biodegraded. Fbio shall be processes that do not meet the determined as specified in (h)(1)(i) and (h)(1)(ii) of this section, the definition for ``enhanced biological paragraph (h) of this section and 40 owner or operator is not required to treatment process'' in § 60.771 of this CFR part 63, appendix C. Follow determine Fbio and is exempt from the subpart, the owner or operator shall applicable performance test the procedures in § 60.778 of this determine the Fbio for VOC on Table 14 requirements specified in § 60.779 of subpart to develop a stream-specific of this subpart and all other VOC using this subpart. list of VOC. any of the procedures in 40 CFR part 63, (i) The biological treatment process (6) Compare RMR to AMR. Compare meets the definition of ``enhanced appendix C, except procedure 3 (inlet the RMR calculated in Equation WW11 biological treatment process'' in and outlet concentration to the AMR calculated in either § 60.771 of this subpart. measurements). Equation WW12 or WW13, as (ii) At least 99 percent by weight of all (i) Performance tests for control applicable.
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