Unsaturated flow definition

Unsaturated flow means liquid flow through a soil media under a negative pressure potential. Liquids containing pathogens and pollutants come in direct contact with soil/fill material microsites, which enhance wastewater treatment by physical, biological, and chemical means.
Sample 1
Unsaturated flow means liquid flowing through a soil media under a negative pressure potential. Liquids containing pathogens and pollutants come in direct contact with soil or fill material that enhance wastewater treatment by physical, biological, and chemical means.
Sample 1
Unsaturated flow means liquid flow through a soil media under a negative pressure potential.
Sample 1

Examples of Unsaturated flow in a sentence

  • Language: English Descriptors: Unsaturated flow; Transport processes; Solutes; Drained conditions; Soil water balance; Water table; Water quality; Prediction; Simulation; Mathematical models; Algorithms Abstract: Long-term assessment of solute transport in the unsaturated zone is an important consideration for irrigation management, pesticide management, and subsurface contaminant restoration analysis and design.

  • Unsaturated flow of water and solutes: basic principles and description of SWAP93.

  • The observations that we make are summarized in suggestions for application of agile ideas in particular development activity.The rest of the report follows a structure where each activity has a heading, under which we first treat items 1 and 2 above in separate tables, followed by a section each on system development with COTS components and component development treating item 3.

  • These are the Product Consistency Test (PCT), Single Pass Flow Through (SPFT) test, Pressurized Unsaturated flow (PUF) test, Vapor Hydration Test (VHT), and, more recently, three proposed EPA draft methods (EPA 2009a, Method 1313; EPA 2009c 1315, and EPA 2009b,Method 1316).

  • Unsaturated flow conditions allow for aerobic conditions in the soil matrix and the air filled soil voids slows the vertical flow which maximizes the treatment time.

  • Language: English Descriptors: Uk; Water pollution; Water quality; Pesticides; Triazines; Usage; Research projects; Watersheds; Environmental assessment; River water; Rain; Groundwater; Monitoring; Catchment hydrology; Unsaturated flow; Chalk soils Abstract: WRc are undertaking a long term study of pesticides in the aquatic environment.

  • Unsaturated flow is achieved by deploying the distribution unit.Soil infiltration systems is three component system in which a soil bed receive wastewater from the septic tanks or other pretreatment unit using the dozing pumps.

  • Unsaturated flow conditions are created, enhancing treatment, and allowing the effluent to move laterally until absorbed into less permeable subsoils.

  • Language: English Descriptors: Soil water; Soil air; Oxygen transport; Oxygen consumption; Solutes; Transport processes; Unsaturated flow; Diffusion; Diffusivity; Soil water content; Crumbs; Size; Denitrification; Mathematical models Abstract: An oxygen transport and consumption model has been developed as a submodel to a general numerical model for solute transport in the unsaturated zone.

  • XxXxxxxxx and Xxxxxx (1979), Unsaturated flow beneath tailings impoundments, ASCE Journal of the Geotechnical Engineering Division, Vol.

Related to Unsaturated flow

  • Unsaturated zone or "zone of aeration" means the zone between the land surface and the water table.

  • Saturated zone or "zone of saturation" means that part of the earth's crust in which all voids are filled with water.

  • Waterborne disease outbreak means the significant occurrence of an acute infectious illness, epidemiologically associated with the ingestion of water from a public water system which is deficient in treatment, as determined by the Division.

  • Intake means “Sanctioned Intake”.

  • Irradiation means the exposure of a living being or matter to ionizing radiation.

  • Infiltration means water other than wastewater that enters a sewer system (including sewer system and foundation drains) from the ground through such means as defective pipes, pipe joints, connections, or manholes. Infiltration does not include, and is distinguished from, inflow.

  • Motorized wheelchair means any self-propelled vehicle designed for, and used by, a handicapped person and that is incapable of a speed in excess of eight miles per hour.

  • Plasma arc incinerator means any enclosed device using a high intensity electrical discharge or arc as a source of heat followed by an afterburner using controlled flame combustion and which is not listed as an industrial furnace.

  • Exfiltration means any unauthorized release of data from within an information system. This includes copying the data through covert network channels or the copying of data to unauthorized media.

  • Hydraulic fracturing means the fracturing of underground rock formations, including shale and non-shale formations, by manmade fluid-driven techniques for the purpose of stimulating oil, natural gas, or other subsurface hydrocarbon production.

  • Inclement Weather means any weather condition that delays the scheduled arrival or departure of a Common Carrier.

  • chemical tanker means a ship constructed or adapted and used for the carriage in bulk of any liquid product listed in chapter 17 of the International Bulk Chemical Code;

  • manoeuvring area means that part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, excluding aprons;

  • Generator Planned Outage means the scheduled removal from service, in whole or in part, of a generating unit for inspection, maintenance or repair with the approval of the Office of the Interconnection in accordance with the PJM Manuals.

  • Cord means the strands forming the fabric of the plies in the pneumatic-tyre.

  • Weathertight means that in any sea conditions water will not penetrate into the ship.

  • Flocculation means a process to enhance agglomeration or collection of smaller floc particles into larger, more easily settleable particles through gentle stirring by hydraulic or mechanical means.

  • Backpressure means a pressure (caused by a pump, elevated tank or piping, boiler, or other means) on the consumer's side of the service connection that is greater than the pressure provided by the public water system and which may cause backflow.

  • Engine degreaser means a cleaning product designed to remove grease, grime, oil and other contaminants from the external surfaces of engines and other mechanical parts.

  • Entombment means the placement of human remains in a crypt.

  • explosive actuated fastening device means a tool that is activated by an explosive charge and that is used for driving bolts, nails and similar objects for the purpose of providing fixing;

  • Grinding means to reduce to powder or small fragments and includes mechanical chipping or drilling.

  • Potential electrical output capacity means, with regard to a unit, 33 per- cent of the maximum design heat input of the unit.

  • Coefficient means a number that represents the quantified relationship of each variable to the assessed value of a property when derived through a mass appraisal process

  • Rated Voltage means the manufacturer’s design voltage at which the transmission system is designed to operate or such lower voltage at which the line is charged, for the time being, in consultation with Transmission System Users;

  • Field-flattening filter means a filter used to homogenize the absorbed dose rate over the radiation field.