As sea levels rise and storms intensify, the impact on combined sewer systems is felt more and more each year. AFT carries several products that can help to reduce and control your CSO events...
Bending Weirs are designed to maintain maximum water storage levels upstream of the weir, thus allowing full usage of all the available upstream storage volume and limiting the amount of CSO over the weir to the fullest extent possible.
Grande Water Management Systems offers a variety of flow regulators which are designed to passively maintain a fixed flow through them under varying upstream head conditions using the principles of physics and mechanics. The uses of these vary widely, but most often they are used to control flows in combined sewer systems (CSO), sanitary sewer systems (SSO) and effluent from batch process plants. These regulators can be designed to maintain flows up to 32,000 GPM with upstream water level up to 40 feet.
The ACU-GATE Flushing Gate System from Grande Water Management is a sediment flushing device designed to remove settled debris from storm water detention tanks, combined sewer overflow (CSO) retention tanks, sanitary sewer overflow (SSO) equalization tanks and reservoir floors, as well as sewer inverts, using a single flush. It has been used in CSO, SSO applications and can be used in agricultural and industrial applications to clean any batch process tank, reservoir or basin. The system operates by releasing a torrent of in-system water stored behind the flushing gate. The resulting flushing wave progresses down the entire length of the flush way, pushing the settled debris ahead of it. The re-suspended debris is then carried by the flush water to the treatment plant for disposal.
Inflatable Rubber Dams
Dyrhoff specializes in the design and supply of inflatable rubber dams and spillway gates. The Dyrhoff rubber dam is designed by Dyrhoff in Europe using design know-how acquired from Sumitomo Electric. All our rubber dam components are designed and manufactured according to the Japanese Technical Standards on inflatable rubber dams. Dyrhoff has provided rubber dams for New York City's sanitary transmission tunnels for the purposes of controlling flow into CSO Storage Tanks.
Inline Check Valves
WAPRO's WaStop has ingenious functionality that provides you with the best possible protection against flooding, odor control and backflow. A wide size range makes it available to fit most types of pipes from NPS 3" to NPS 72" and it is also available in an Access chamber for easy access from ground level. Working on differential pressure the WaStop functions autonomously, without human interaction, without electricity and without constant maintenance. It just works.
The ACU-SCREEN Fine Slotted Overflow Screen System from Grande Water Management is designed to remove debris from storm water overflow systems, combined sewer overflow (CSO) systems and sanitary sewer overflow (SSO) systems. The ACU-SCREEN fine slotted screen provides an economic and effective solution to protect against floating and suspended matter entering receiving streams.
The ACU-TIP tipping bucket from Grande Water Management is a sediment flushing system designed to remove settled debris from reservoir floors, such as stormwater or CSO retention tanks and sanitary equalization tanks. The system operates by releasing a torrent of fresh water stored in the tipping bucket. The resulting flushing wave progresses down the entire length of the flushway pushing the settled debris ahead of it. The re-suspended debris is then carried by the flush water to the treatment plant for disposal.