《ACRP-Problem-No-10-02-23.pdf》由会员分享，可在线阅读，更多相关《ACRP-Problem-No-10-02-23.pdf（3页珍藏版）》请在三一文库上搜索。
1、ACRP Problem No. 10-02-23 Recommended: Yes Characterizing Methods for the Monitoring of Stormwater Containing Aircraft and Pavement Deicing Materials ACRP Staff There appears to be some overlap between this problem statement and ACRP project A02-11, Water Resource Issues Affecting Airport Capacity E
2、nhancement Planning. However, the scope does go beyond current and previous ACRP research to concentrate on how airports measure water quality and related de-icing discharge. This scope should also be coordinated with ACRP project A02-06, Preparing Airport Greenhouse Gas (GHG) Emissions Inventories
3、to avoid further overlap. TRB Aviation Group Environmental Impacts of Aviation Cmte: Real-time problem for airports and with pending Effluent Limit Guidelines (ELG), many vendors will “come out of the woodwork“ to sell their latest and best device. Could be very beneficial to the airport manager to
4、weed through the facts from fiction. Project should include real-time monitoring systems capable of providing input to real time flow segregation systems. Recommend funding. Panel for Environmental Emphasis The Environmental Panel expressed support and recommends this problem statement for the FY201
5、0 ACRP research program. Elements of the scope overlap with ACRP 02-11. However, the remaining scope is worthy of research. ACRP ABSTRACT FOR RESEARCH IN FY2010 A AC CR RP P Problem Number Problem Number 10-02-23 I. PROBLEM TITLE Characterizing Methods for the Monitoring of Stormwater Containing Air
6、craft and Pavement Deicing Materials II. RESEARCH PROBLEM STATEMENT The aviation industry has developed a number of Best Management Practices (BMPs) for controlling deicer-laden stormwater discharges, with individual airports applying combinations of the BMPs as they seek to meet their discharge per
7、mit conditions. A common BMP strategy used by many airports to manage both compliance and the costs of Deicer Management Systems is limiting the quantities of stormwater that must be captured and processed. One method for limiting the quantities to be processed is use of permanently mounted or mobil
8、e instruments to measure the concentration of deicers and their breakdown products in the stormwater. A variety of potential monitoring devices are available, including devices that measure deicer concentrations in terms of Total Organic Carbon, Biochemical Oxygen Demand, Chemical Oxygen Demand, and
9、 Glycols. While online monitoring of deicer concentrations can be a very effective tool in improving compliance and significantly reducing infrastructure costs, there is a relatively high degree of uncertainty regarding the potential performance of individual instruments in response to the ever-chan
10、ging characteristics of deicer- laden stormwater at a specific site. In addition, there is a lack of clarity and uniformity as to how the output of various types of instruments relates to commonly applied permit monitoring parameters. A lack of understanding of these relationships can have a signifi
11、cant effect on the acceptance of the instrument output by regulators. III. OBJECTIVE The objective of the research is to characterize the performance of commonly used instruments for measuring deicer concentrations in the conditions experienced when in use in deicer management systems. A characteriz
12、ation of performance and assessment of applicability will provide the aviation industry with knowledge that is currently lacking for making informed decisions regarding the use and application of the instruments. IV. RESEARCH PROPOSED Potential elements to be included in the research study include:
13、Review of existing literature to identify instruments that have been utilized for measurement of deicer concentrations Survey of airports to identify the types of instruments used, how the instruments are used, data correlating output to standard laboratory analyses, data correlating output to chang
14、es in stormwater characteristics, required maintenance, entities performing the maintenance, current and project lifespan, reliability,range of operations and maintenance costs, and acceptance of instrument output by regulators for purposes of compliance. Comparative testing of instruments installed
15、 at existing airports to assess relative accuracy, repeatability, responsiveness, reliability, and relationship to standard analytical parameters such as BOD, COD, and glycol concentrations. The output of the instruments would be measured in response to samples of deicer-laden stormwater with differ
16、ent characteristics, including variations in temperature, pH, dissolved solids, suspended solids, aircraft deicer concentrations, pavement deicer concentrations (multiple types), dissolved oxygen concentration, petroleum products, and the degree to which the stormwater has been treated. Calculations
17、 would be performed using the acquired data to characterize instrument performance and identify conditions or characteristics that affect instrument output. 2 Assess means for characterizing the cost-effectiveness of the instruments for comparison to other deicer management BMPs Potential end produc
18、ts include Fact Sheets summarizing the characteristics of the various types of instruments and a Guide for selection of the instruments, opportunities for use within deicer management systems, and methods for operating the instruments in deicer management systems. V. ESTIMATE OF THE PROBLEM FUNDING
19、AND RESEARCH PERIOD Recommended Funding: It is estimated that $200,000 will be required to execute the research. Research Period: It is estimated that 4 months will be required to prepare for the research, 6 months will be required to conduct the research during a deicing season, and 3 months will b
20、e required to prepare the final document. VI. URGENCY AND PAYOFF POTENTIAL Numerous airports are currently studying, designing, implementing, and operating deicer management systems. Many of those systems utilize some form of online measurement of deicer concentrations. Improved characterization of
21、the performance of online instruments, including identification of the factors affecting instrument output, would be a significant asset in the ability of those airports to comply with regulatory requirements. Better understanding of the instruments capabilities and limitations could also allow thos
22、e instruments to be a more frequently used component of deicer management systems, allowing reductions in the costs and sizes for equipment needed to collect, convey, store and treat deicer-laden stormwater. Documentation of instrument performance and correlation of output to laboratory means of mea
23、suring oxygen demand could also be an asset in obtaining regulatory approval for use of an instrument for controlling and/or monitoring compliance. The need for improved understanding of these instruments is also particularly timely given the potential for an industry-wide regulatory standard potent
24、ially implemented by the U.S. EPA through Effluent Limit Guidelines (ELG). The ELG may require airports to collect a certain percentage of the applied deicer. Without reliable methods for measuring the deicer concentrations of the collected stormwater, it will be extremely difficult for airports to
25、effectively determine compliance. This will likely lead to the need to oversize stormwater collection, conveyance, storage, and treatment systems as a safety factor to reduce the risks of non-compliance. Given that deicer management system typically required capital investments of $10M to $100M, the
26、 financial impact to the industry of improved understanding and reliability of online measurement could be significant. VII. RELATED RESEARCH The research is related to the work products developed for ACRP 02-02: Managing Runoff from Aircraft and Airfield Deicing and Anti-Icing Operations. VIII. PER
27、SON(S) DEVELOPING THE PROBLEM Airports Council International-North America (ACI-NA) Environmental Affairs Committee Water Quality Committee Working Group members IX. PROCESS USED TO DEVELOP PROBLEM STATEMENT The problem statement was developed, reviewed and approved by the ACI-NA Water Quality Working Group of its Environmental Affairs Committee and is supported by the Committee. X. DATE AND SUBMITTED BY Jessica Steinhilber Senior Director, Environmental Affairs Airports Council International-North America April 10, 2009