Sewage collection systems

Sewage collection systems

Configurations of inlets, catch basins, manholes, pipes, drains, mains, holding basins, pump stations, outfalls, controls, and special devices to move wastewaters from points of collection to discharge. The system of pipes and appurtenances is also known as the sewerage system. Wastewaters may be sanitary sewage, industrial wastes, storm runoff, or combined flows.

A sewer is a constructed ditch or channel designed to carry away liquid-conveyed wastes discharged by houses and towns. Modern sewer systems typically are gravity-flow pipelines installed below the ground surface in streets and following the ground slope. The depth of cover over pipelines is controlled by factors such as the location of rock and ground water, the ability to receive flows from all buildings by gravity, depth to frost line, economics of maintaining gravity flow as compared with pumping, and location and elevation of other existing utilities and infrastructures.

Sewerage systems are designed to carry the liquid wastes smoothly, without deposition, with a minimum of wasted hydraulic energy, and at minimum costs for excavation and construction; they should provide maximum capacity for future populations and flows. Engineered construction, controlled by availability of time, material, personnel, and finances, affects the choice and use of individual components within sewerage systems. See Industrial health and safety, Sewage, Sewage disposal

References in periodicals archive ?
Suez Advanced Solutions, headquartered in Atlanta, GA, is a professional service and contracting firm dedicated to providing sustainable products and services for potable water distribution systems and sewage collection systems.
The work to be carried out will help replace, rehabilitate and upgrade sewage collection systems across the Naval Base Guam and outlying areas to include Nimitz Hill, Naval Hospital, Polaris Point, Ordnance Annex, and Apra Palms Housing.
storm water and sewage collection systems fail daily, stopping business and creating significant health hazards.
The combination of low permeability and high chemical resistance makes SewerSeal F-170 a strong option for protecting or restoring structures within sewage collection systems.
The sulphide formation as a result of reduction of sulphate by the sulphatereducing bacteria Desulphovibrio and Desulphotamaculum [1] is a common process in the sewage collection systems.
SewerCAD is a design and analysis tool that allows users to layout sanitary sewage collection systems, develop and compute sanitary loads, and simulate the hydraulic response of the entire system-including gravity collection and rising mains.
Many of the nation's urban sewage collection systems are aging; some sewers are 100 years old.
The Commission justifies referring Austria and Germany to the Court of Justice since despite some improvements in the implementation of the Directive, there are persistent shortcomings with respect to transposing the Directive into national law, meeting deadlines and failing to implement suitable sewage collection systems in some areas.
These coatings are resistant to water and corrosive breakdown by most acids and solvents and are used in many applications, including drinking water distribution and sewage collection systems.
The County of Kauai is seeking a professional engineering firms experienced with design and construction of odor control systems for sewage collection systems (primarily manholes) to evaluate existing conditions and available alternative odor control solutions; recommend the preferred alternative solution; prepare plans, specifications and estimates for implementation of recommended solution; and provide services to the County during bidding and construction of odor control improvements for the Coco Palms sewer collection system operated by the Countys Wastewater Management Division.
Maryland Department of the Environment is in the development phase of drafting a general State/National Pollutant Discharge Elimination System (NPDES) permit that will cover Owners/Operators of sewage collection systems, both public and private.
The project will support a priority investment programme to rehabilitate the water supply and sewage collection systems and to modernise the wastewater treatment in the capital of Moldova.