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    <title>Transport Research International Documentation (TRID)</title>
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    <atom:link href="https://trid.trb.org/Record/RSS?s=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" rel="self" type="application/rss+xml" />
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    <language>en-us</language>
    <copyright>Copyright © 2026. National Academy of Sciences. All rights reserved.</copyright>
    <docs>http://blogs.law.harvard.edu/tech/rss</docs>
    <managingEditor>tris-trb@nas.edu (Bill McLeod)</managingEditor>
    <webMaster>tris-trb@nas.edu (Bill McLeod)</webMaster>
    <image>
      <title>Transport Research International Documentation (TRID)</title>
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      <link>https://trid.trb.org/</link>
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    <item>
      <title>Addressing maritime biosecurity challenges via ballast water treatment technologies and regulations</title>
      <link>https://trid.trb.org/View/2677523</link>
      <description><![CDATA[This research highlights a crucial yet often overlooked intersection between ballast water management biosecurity regulations and operational compliance challenges. Effective compliance with ballast water regulations improves maritime biosecurity by preventing biological risks that could disrupt port management and operations, harm critical infrastructure, and destabilize global supply chain networks. By implementing treatments in accordance with standardized regulations and record-keeping mandates, the current regulations ensure maritime security while facilitating sustainable global trade operations. The International Maritime Organization’s Ballast Water Management Convention (BWMC), the US Coast Guard (USCG), and other authoritative entities have established a regulatory framework on ballast water. (IMO 2025a; USCG 2025). Their goal is to eliminate public health and environmental risks caused by viruses, bacteria, invasive aquatic species, and toxic microalgae (ABS, 2025; Clear Seas 2025). This research provides a robust assessment and technological implementation framework for the marine environmental framework, evaluating the industry’s compliance with the Ballast Water Treatment regulatory protocol. The objective of this paper is to assess the technological implementation of the global maritime industry since regulatory compliance became mandatory, and to evaluate ongoing challenges, regulatory disparities, and emerging technologies in this field.]]></description>
      <pubDate>Wed, 17 Jun 2026 12:23:20 GMT</pubDate>
      <guid>https://trid.trb.org/View/2677523</guid>
    </item>
    <item>
      <title>New Technology of Collection, Drainage and Joint Treatment of Industrial Urban Runoff</title>
      <link>https://trid.trb.org/View/2408105</link>
      <description><![CDATA[The purpose of this study is to analyze the existing approaches for the joint treatment of industrial and urban runoffs of industrial enterprises, to determine the value of their optimal performance with the conclusion of the criterion for the absence of the need to increase the productivity of industrial wastewater treatment plants to treat residual rainfall and to develop a new technological scheme for the joint treatment of industrial and urban runoff. Based on the analysis of the existing approaches to wastewater treatment of industrial enterprises in the work, it is theoretically proved that it is possible to optimize technological processes for the industrial and urban runoff treatment without increasing the capacity of industrial wastewater treatment facilities. According to the research results, it was proposed to take into account the size of the industrial treatment facilities’ reserve capacity arising from the joint processing of industrial and residual rainfall runoff; the calculated dependencies for the joint treatment facilities’ productivity were obtained, the influence degree of the reserve capacity on the design parameters and the advantages of implementing such solutions was proposed, a new technological scheme for industrial and urban runoff joint treatment was proposed.]]></description>
      <pubDate>Fri, 29 Aug 2025 10:03:45 GMT</pubDate>
      <guid>https://trid.trb.org/View/2408105</guid>
    </item>
    <item>
      <title>Upcycling waste asphalt into calcium-enriched carbonaceous adsorbent for ultrafast Cd(II) immobilization</title>
      <link>https://trid.trb.org/View/2569263</link>
      <description><![CDATA[The valorization of construction solid wastes into functional materials presents a dual opportunity for environmental remediation and sustainable infrastructure development. Herein, the authors successfully repurposed asphalt-based solid waste into calcium-enriched carbonaceous adsorbent through sequential pyrolysis (CAsp) and ball-milling (CAsp, bm) techniques for 4 h at a constant rotational speed of 550 rpm. It was noteworthy that both the CAsp and CAsp, bm demonstrated an ultrafast adsorption efficiency for Cd(II), achieving equilibrium within 5 min. The maximum adsorption capacity (207.54 mg/g) was obtained through pyrolysis at 900 ℃ followed by ball-milling (CAsp, bm-900). The adsorption process closely followed the pseudo-second-order kinetic model and Freundlich isotherm, characterized by an ultrafast adsorption phase succeeded by a slower equilibrium stage. The adsorption process was spontaneous and involved multilayer adsorption, primarily governed by chemisorption mechanisms. The analysis of ions species and characterizations revealed that both pyrolysis and ball-milling processes enhanced the removal efficiency of Cd(II) by altering the surface composition and functional groups, specific surface area, and surface defects of CAsp and CAsp, bm. The primary mechanisms for Cd(II) adsorption on CAsp, bm-900 included ion exchange with Ca(II), precipitation in conjunction with CO32-, and electrostatic attraction. Unfortunately, the presence of Cu(II) and Pb(II) significantly inhibited the removal of Cd(II), attributed to their markedly higher electronegativity. This study proposes a promising strategy for fabricating cost-effective and high-efficiency adsorbents through the upcycling of waste asphalt into functional materials, thereby enabling the effective removal of heavy metals from wastewater.]]></description>
      <pubDate>Fri, 25 Jul 2025 11:31:59 GMT</pubDate>
      <guid>https://trid.trb.org/View/2569263</guid>
    </item>
    <item>
      <title>Retrospective Analysis of Stormwater Treatment System Operating and Maintenance Costs at Washington State Container Terminals</title>
      <link>https://trid.trb.org/View/2559506</link>
      <description><![CDATA[Washington State’s stringent industrial stormwater general permit (ISGP) requirements have driven many industrial facility owners and operators to install stormwater treatment systems. When evaluating suitable treatment systems, it can be difficult to estimate and compare operating and maintenance (O&M) needs and costs and to extrapolate these factors over the system’s lifespan. This paper evaluates actual treatment system O&M requirements and cost data for end-of-pipe treatment systems installed at two container terminals in Washington State to better understand true costs of treatment system O&M. It focuses on facilities operated by SSA Terminals (SSAT) in Seattle and Tacoma to limit variability in industrial activities and housekeeping practices among different facility operators and different weather patterns among different geographic regions. An improved understanding of O&M costs and maintenance needs associated with common treatment systems will help port facility owners, tenants, and stormwater engineers make informed decisions during alternatives evaluations at other facilities.]]></description>
      <pubDate>Fri, 27 Jun 2025 11:04:48 GMT</pubDate>
      <guid>https://trid.trb.org/View/2559506</guid>
    </item>
    <item>
      <title>Methane Electricity Generation Project Phase III</title>
      <link>https://trid.trb.org/View/2534952</link>
      <description><![CDATA[The purpose of this project is to build off the previous design to create an energy recapture and generation system to test at the Scatter Creek Safety Rest Area (SRA). This system uses methane generated in the anaerobic digestion process to create electrical energy that could potentially run the SRA. The methane, carbon dioxide and hydrogen sulfide gasses from sewage systems escape into the atmosphere without treatment currently at SRAs. Utilizing this gas saves the Washington State Department of Transportation WSDOT) energy costs, as well as diverting pollutant gasses into reuse. As a result, a physical prototype for conversion of methane from biowaste to electricity has been redesigned, updated, fabricated and reassembled based on a previous prototype for demonstration of this sustainability idea for WSDOT facilities.]]></description>
      <pubDate>Fri, 11 Apr 2025 11:14:48 GMT</pubDate>
      <guid>https://trid.trb.org/View/2534952</guid>
    </item>
    <item>
      <title>The Treating of Oily Wastewater with a Compact Mobile Unit</title>
      <link>https://trid.trb.org/View/2408103</link>
      <description><![CDATA[Experimental results of preliminary treatment of oily liquid wastes generated at enterprises during maintenance of storage tanks for combustible and lubricating materials, repair and maintenance works, washing products that have worked with different lubricants directly at the place of their formation by means of a compact mobile unit including a filter with a sorption material loading, a chamber with a settling tank placed in it, and a Nutsche filter for separation and dehydration are presented. Suspended substances, non-emulsified fats, oils and emulsified petroleum products from the aqueous phase are removed by filtering through sorption material based on polypropylene and emulsified and dissolved petroleum products are settled in the reactor-settling tank on the surface of coagulants – iron or magnesium hydroxides. The efficiency of pretreatment from mechanical impurities and non-emulsified petroleum products was close to 100%, emulsified and dissolved petroleum products >98.7%.]]></description>
      <pubDate>Fri, 21 Mar 2025 16:02:42 GMT</pubDate>
      <guid>https://trid.trb.org/View/2408103</guid>
    </item>
    <item>
      <title>Cambridge Underground: Challenges of Sewer Separation and Stormwater Management</title>
      <link>https://trid.trb.org/View/2218577</link>
      <description><![CDATA[Cambridge is an old city that is seriously in need of the infrastructure improvements that are now being implemented. Sewer separation and stormwater management projects will alleviate the problem of flooding and threats to public health caused by untreated wastewater discharged to low-lying neighborhoods and the Charles River during heavy rainstorms. Since 1998, S E A Consultants Inc. and Montgomery Watson Harza (S E A/MWH) have been working with the Cambridge Department of Public Works to pinpoint problems within the existing system; develop ways to achieve the program objectives; and plan, design, and oversee construction of over $325 million in city-wide infrastructure improvements over the next 15 years. Unconventional construction methods in heavily developed urbanized areas such as use of large underground storage tanks, maximizing use of surface storage potential, use of best management practices to reduce floatables and sediment discharges to the Charles River, and applications of trenchless technologies to minimize construction disruptions while improving the infrastructure have been highlights of the program. The paper describes various aspects of the Cambridge sewer separation and stormwater management program, the condition of the existing infrastructure, improvements needed to support future growth, and innovative techniques used to address water quality and quantity considerations. Planning, design, construction, utilities, traffic and pedestrian management, and community participation will be explained as they relate to this program.]]></description>
      <pubDate>Wed, 18 Dec 2024 13:29:02 GMT</pubDate>
      <guid>https://trid.trb.org/View/2218577</guid>
    </item>
    <item>
      <title>Brackish Water Treatment: An Application in Water Reuse</title>
      <link>https://trid.trb.org/View/2283341</link>
      <description><![CDATA[Pinellas County, one of the most progressive governmental entities in Central Florida, utilizes a mass burn or waste-to-energy (WTE) facility to dispose of solid waste within its service area. To support operation of the WTE, water is drawn from an onsite surface water pond ("Pond A"). The Pond A supply serves as the primary water supply for the County's WTE facility cooling tower operation and may also be used for other in-plant water uses. The pond receives water from various sources such as roadway runoff, stormwater, rainwater, and operations waste streams, including ion exchange system concentrate and ash landfill leachate. Given the variable nature of the constituents in the pond water, selection of appropriate treatment would prove to be both multifaceted and necessary as the County was issued a consent order which requires a solution be developed as a measure to mitigate NPDES discharge violations. This project involved conducting a pilot study to screen pretreatment methods and follow-on reverse osmosis (RO) desalination in an effort to make more beneficial use of the surface water pond. Pilot testing identified the full-scale design parameters needed to facilitate design, bidding, and construction of a 2.5 mgd (finished) water treatment facility which will be comprised of an integrated process with coagulation, membrane filtration and RO.]]></description>
      <pubDate>Thu, 07 Nov 2024 11:30:37 GMT</pubDate>
      <guid>https://trid.trb.org/View/2283341</guid>
    </item>
    <item>
      <title>Treatment of Railway Laundry Wastewater through a Chain of Physicochemical Processes and an Aerobic Sequential Batch Reactor</title>
      <link>https://trid.trb.org/View/2434067</link>
      <description><![CDATA[This paper introduces a comprehensive approach to treating industrial laundry wastewater collected from a railway laundry, employing a novel unique sequential combination of coagulation–flocculation, neutralization, ultraviolet (UV)-H₂ O₂ treatment, and biological processes. Typical characterization of laundry wastewater reveals high pH, suspended solids, dissolved organic content, and low biodegradability. The researched treatment sequence involved turbidity reduction (65%) using FeCl₃ and cationic polyelectrolyte coagulants followed by pH neutralization (7–8), UV-H₂ O₂ treatment [83% and 23% chemical oxygen demand (COD) and biochemical oxygen demand (BOD) removal, respectively) and aerobic biological treatment (88% and 97% for COD and BOD removal, respectively). During the (UV)-H₂ O₂ process, when the H2O2 dosage exceeded 30 mg·L⁻¹, inefficiency in COD removal was observed owing to the scavenging of hydroxyl radicals. With the increase in flow rate, the COD removal was reduced nominally. The effluent from the (UV)-H₂ O₂ process was treated by an aerobic sequential batch reactor, demonstrating high efficacy in removing both BOD and COD. The biokinetics parameters, such as half-saturation coefficient (𝘬s), maximum specific rate of substrate utilization (𝘬), yield coefficient (𝘠), decay rate (𝘒d), and maximum specific growth rate (µm) were determined, and they were observed to be 130 mg of COD·L⁻¹, 0.3 day⁻¹, 0.9 mg volatile suspended solids/mg COD, 0.055 day⁻¹, and 0.42 day⁻¹, respectively. Overall, a reduction of approximately 95% of COD and 97% of BOD was attained, rendering the wastewater suitable for safe disposal into inland surface waters. This showcases an effective and sustainable method for treating laundry wastewater.]]></description>
      <pubDate>Thu, 17 Oct 2024 09:15:18 GMT</pubDate>
      <guid>https://trid.trb.org/View/2434067</guid>
    </item>
    <item>
      <title>Removal of arsenate and ammonia from water by molecularly imprinted
                    polymers</title>
      <link>https://trid.trb.org/View/2431303</link>
      <description><![CDATA[Arsenic and ammonia in ground and surface waters pose significant health risks                     globally, especially for remote areas where access to safe drinking water is a                     concern for U.S. military personnel. Current removal materials and methods lack                     contaminant specificity. This study developed adsorptive resins and membranes                     specifically targeting arsenate and ammonia removal using molecularly imprinted                     acrylate polymers supported on graphitic carbon nitride. These materials showed                     comparable arsenate removal capacity to commercial resins. Higher ammonia                     removal capacity but lower selectivity was demonstrated by these materials in                     comparison to commercial resins. This research aims to enhance water treatment                     materials for ensuring clean drinking water access in remote military                     locations.]]></description>
      <pubDate>Mon, 16 Sep 2024 16:14:13 GMT</pubDate>
      <guid>https://trid.trb.org/View/2431303</guid>
    </item>
    <item>
      <title>Evaluation of aircraft deicing fluid as an external carbon source for denitrification</title>
      <link>https://trid.trb.org/View/2358421</link>
      <description><![CDATA[Water resource recovery facilities (WRRFs) performing biological nitrogen removal (BNR) often require external carbon sources for meeting nitrogen discharge permit limits. This brings an additional financial burden to the facilities considering the continuous need of these external carbon sources. This paper evaluates the utilization of airport stormwater, which in the winter season is rich in aircraft deicing fluid (ADF) as an alternative external carbon source. Denitrification and nitrification bench scale experiments were performed to assess the efficacy of external carbon sources to remove nitrogen in WRRFs. Experimental results showed that ADFs achieve denitrification rates of 0.064–0.066 d⁻¹, higher than what achieved by a commercial carbon source, MicroC 2000A, with corresponding value of 0.058 d⁻¹ at low temperatures, as low as 13 °C, which is considered a worst-case scenario for nitrogen removal efficiency. Furthermore, no inhibition to nitrification associated with the ADFs was observed. Subsequently a dynamic modeling study was conducted to assess the performance of ADFs as external carbon sources for denitrification and compared them to the conventional source that was being used in a full-scale BNR process. Results from the dynamic modeling study revealed that if 40 % of the spent-ADF at LaGuardia airport, New York City, could be collected with the stormwater and conveyed to a WRRF via the sewer collection system, an approximate reduction of 30 % of the commercial external carbon source could be accomplished by repurposing a waste product. This study contributes to the potential of ADF as a denitrification aid and an alternative for commercially available carbon sources with comparable nitrogen removal efficiencies.]]></description>
      <pubDate>Mon, 29 Apr 2024 14:32:23 GMT</pubDate>
      <guid>https://trid.trb.org/View/2358421</guid>
    </item>
    <item>
      <title>The Analysis of Environmental Problems in Seas around Ports of China Based On Green Ideal</title>
      <link>https://trid.trb.org/View/2281646</link>
      <description><![CDATA[Since the 1950s, besides reformation and extension of previous ports, our country has established many new deep water ports, and other deep-water harbours in 15 ports, which have made great changes in port outlook. However, while the operation and construction of ports bring economic development opportunities, they also cause serious environmental pollution to the port waters. First, based on the green ideal, the paper analyzes environmental pollution around ports caused by the ballast water of ships, the ship's "for the oil" operations, industrial sewage discharged from the port and surrounding industrial areas without full purification, and domestic sewage; then, it studies the problem with qualitative and quantitative analysis, and points out some corresponding processing measures. We hope this paper will provide necessary evidence for the construction and pollution-free operation of China's ports.]]></description>
      <pubDate>Tue, 27 Feb 2024 16:03:14 GMT</pubDate>
      <guid>https://trid.trb.org/View/2281646</guid>
    </item>
    <item>
      <title>140 years-long sedimentary records of PAHs and CN stable isotopes from Ninomiya River, Japan</title>
      <link>https://trid.trb.org/View/2251223</link>
      <description><![CDATA[Anthropogenic activities' impacts over 140 years were studied at West Nanao Bay using a variety of geochemical techniques on sedimentary records. The bay is influenced by the Ninomiya River which is fed by a small watershed at which Tatzuruhama Town is located. Sedimentation rate was calculated using ²¹⁰Pb-excess and ¹³⁷Cs activities. C/N decreased after 1975, indicating a decrease in lignin-rich organic matter. From δ¹³C, g¹⁵N and biogenic silica it was indicated that the population increased sewage-discharges until the construction of waste-water treatment plant in 1986. Several recorded changes in the landuse matched with the variation of the particle size. Total PAHs concentration was 1.17–62.78 μg g⁻¹, being highest during Japan's fastest economic growth period (1946–1975). Using diagnostic ratios and PCA analysis, PAHs' sources were identified as pyrogenic for all depths, varying from coal combustion (90.7 %) before 1946 to a mixture of biomass and vehicle combustion after 1961.]]></description>
      <pubDate>Thu, 22 Feb 2024 16:14:05 GMT</pubDate>
      <guid>https://trid.trb.org/View/2251223</guid>
    </item>
    <item>
      <title>Bilge and Oily Water Treatment During Operation of Vessel</title>
      <link>https://trid.trb.org/View/2338850</link>
      <description><![CDATA[Bilge and oily water (BOW) during vessel’s operation are the most large-tonnage type of waste and for their treatment all ships, in accordance with regulatory requirements [14], have to be equipped with special equipment – oily water separators. Under conditions of sea vessel operation BOW are process effluents that occur in the engine room, in cargo holds, as well as during the operation of the different equipment and deck machinery. At sea vessel’s operating conditions three main directions of BOW cleaning are now used: physical, chemical and biological. In most technological cases, they are used in combination with each other. The analysis of BOW separation methods based on these three directions has shown that they all could be characterized by one common drawback - unidirectional cleaning. During separation the final product – water is only one component of multiphase flow. It is very difficult to obtain secondary petrochemical products when modern methods of purification are used on the sea vessel during separation. Because of this reason in the research, a new method for BOW separation was developed. It is based on the use of a hydrodynamic process of supercavitation with artificial ventilation of the cavitational cavern. With local origin in the flow of a supercavitating cavern, there will always be saturated water vapor inside of it. The process of permanent water vapor selection from the cavern will ultimately contribute to the production of highly concentrated mixture of those petroleum products that form the initial mixture of BOW. In research, an assessment of the spatial stability of the cavitational cavern in the range of various cavitation numbers was done. During the study of BOW separation process it was found that decreasing of the working pressure inside the working chamber of the cavitation separator have to be always compensated by an increase in the temperature of the processed multiphase flow.]]></description>
      <pubDate>Wed, 21 Feb 2024 16:47:39 GMT</pubDate>
      <guid>https://trid.trb.org/View/2338850</guid>
    </item>
    <item>
      <title>Guide for Treatment of Airport Stormwater Containing Deicers: Update</title>
      <link>https://trid.trb.org/View/2260101</link>
      <description><![CDATA[This report provides a comprehensive guide for selecting appropriate technologies to treat stormwater containing deicers at airports. It is a complete update of ACRP Report 99: Guidance for Treatment of Airport Stormwater Containing Deicers, published in 2013. The report will be of particular interest to industry practitioners who are considering developing, expanding, or enhancing their treatment facilities.]]></description>
      <pubDate>Sun, 08 Oct 2023 17:46:30 GMT</pubDate>
      <guid>https://trid.trb.org/View/2260101</guid>
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