• sediment
  • In this study, we investigated the nitrogen and sediment capture performance of a 50 m 2 floating treatment wetland deployed for 137 days on a stormwater wet pond located within an urban university campus near Washington, D.C. A total of 2684 g of biomass was produced, 3100 g of sediment captured, and 191 g of nitrogen removed from the pond. (mdpi.com)
  • Check dam Diversion dike (temporary) Fiber rolls Siltbusters Sand bag barrier Sediment basin Sediment trap Silt fence Storm drain inlet protection Straw bale barrier Turbidity curtain Chemical treatment of sediment, commonly called an active treatment system, is a relatively new form of sediment control for the construction industry. (wikipedia.org)
  • It is designed to reduce turbidity in nearby water bodies and involves collection of sediment-laden stormwater in a basin or tank, and adding a chemical flocculant. (wikipedia.org)
  • Some of the flocculent chemicals used for sediment treatment are chitosan and polymers such as polyacrylamide. (wikipedia.org)
  • Certified Professional in Erosion and Sediment Control (CPESC) Geotechnical engineering Geotextile (material used in erosion & sediment controls) Nonpoint source pollution Stormwater Universal Soil Loss Equation Basic Erosions and Sediment Control. (wikipedia.org)
  • Along with supplemental features to reduce velocity, an HDS system is designed to separate floatables (trash, debris and oil) and settleable particles, like sediment, from stormwater. (wikipedia.org)
  • outfall
  • A 13-mile (21 km), 17.5-foot-diameter (5.3 m) tunnel was built by several tunnel boring machines from the treatment plant to an outfall nearly due west on Puget Sound. (wikipedia.org)
  • sewage
  • Brightwater is a large sewage treatment plant in south Snohomish County, Washington, USA that went online in 2011. (wikipedia.org)
  • In August 2002, then King County Executive Ron Sims announced that a billion-dollar regional sewage-treatment plant named "Brightwater" would be built in neighboring Snohomish County and provide service for parts of King and Snohomish counties. (wikipedia.org)
  • However, concerns remain over the siting of the project, both from its future neighbors worried about the smells associated with sewage treatment and geologists due to at least one active fault line running through the site, and concerns over whether a new plant was necessary when eliminating stormwater and wastewater from the sewage system. (wikipedia.org)
  • increasingly
  • As stormwater regulations become increasingly stringent, many states and municipalities have developed criteria to govern the use and sizing of HDS systems, and publish lists that identify acceptable HDS systems. (wikipedia.org)
  • wetland
  • The Greater Toronto Airports Authority (GTAA) is constructing the first full-scale vertical-flow treatment wetland in Canada for reduction of ethylene glycol in stormwater. (chijournal.org)
  • A two-cell treatment wetland preceded by a sedimentation forebay is under construction. (chijournal.org)
  • The mass glycol loading reduction using a vertical-flow treatment wetland, especially during low-flow and high concentration events, is expected to be significant and will contribute to the improvement in the water quality of Etobicoke Creek and provide a cost savings to the GTAA with respect to sewer use charges. (chijournal.org)
  • Underground
  • Underground storage of stormwater has become very popular within the last few decades as it is an essential for Low Impact Developments (LIDs). (echelonenvironmental.ca)
  • For example, underground treatment devices that hold permanent sources of water and produce mosquitoes are unlikely to support commonly used biological control agents, and physical controls such as exclusion (e.g., valves and covers) can be difficult to implement without affecting the devices intended function. (ucanr.edu)
  • System
  • No comments were found for Passive treatment system helps boatyard meet stormwater benchmarks . (environmental-expert.com)
  • Be aware that not all HDS systems are alike in treatment performance, and basing a decision solely on the installation and operating cost of a system may compromise system performance and the environment. (wikipedia.org)
  • Long-term maintenance costs should also be considered with overall costs when purchasing or selecting a stormwater BMP as initial installation and operating costs may not reflect the long-term investment needed to maintain the system. (wikipedia.org)
  • The wetlands were created in 1994 as part of a stormwater treatment system with both tidal and freshwater sections. (wikipedia.org)
  • particle size
  • This lecture was very well-received by those in attendance, and because of the popular demand for a way to find out the particle size of their facility's storm water, Stormwater Online has developed a particle size distribution experiment they are offering to the public. (sys-con.com)
  • Design
  • This becomes apparent especially when faced with the limitations imposed by certain treatment BMPs as a result of their design, location, or accessibility. (ucanr.edu)
  • Environmental engineers from Brisbane's Griffith University have conducted numerous studies on water quality at the creek and wetlands, and have presented papers at conferences internationally on the design and effectiveness of the treatment train. (wikipedia.org)
  • importance
  • As more and more stormwater programs recognize the importance of integrating mosquito control into their lists of public health priorities, the dilemma of how to effectively manage mosquitoes in designs that favor mosquito breeding becomes obvious. (ucanr.edu)
  • significantly
  • FAIRHAVEN - The town was awarded almost $280,000 in federal grant money to help install innovative stormwater treatment systems in North Fairhaven that could significantly reduce the pollution flowing into New Bedford Harbor, town officials announced this week. (southcoasttoday.com)
  • loads
  • 1997) and others have shown that stormwater is a source of diffuse pollution with a high source of total suspended solids (TSS), adsorbed hydrocarbons (HC) and nutrient loads (N, P, etc. (environmental-expert.com)
  • Environmental
  • ANAHEIM, Calif. , Dec. 31, 2012 /PRNewswire/ -- A recent lecture given by our director George Caamano at the ISRI Safety and Environmental Counseling Convention discussed stormwater chemistry and affordable treatment systems. (sys-con.com)
  • Publications
  • Erosion Control - a trade magazine for the erosion control and construction industries International Erosion Control Association - Professional Association, Publications, Training "Developing Your Stormwater Pollution Prevention Plan: A Guide for Construction Sites. (wikipedia.org)