Wastewater Treatment Systems
There are numerous processes that can be used to clean up (treat) wastewaters depending on the type and extent of contamination and the hydrolic flow
e3 represents manufacturers of small flow and decentralized wastewater treatment systems including NSF40/245 approved Fixed Film systems, Sequencing Batch Reactors, Membrane Bio Reactors , Moving Bed Biological Reactors and Lagoon Treatment systems.
Most wastewater is treated in small scale wastewater treatment plants which may include physical, chemical and biological treatment processes. However, the use of small flow (400 - 1500gpd ) On-Site Sewage Facilities (OSSF) is widespread in rural areas, serving up to one quarter of the homes in the U.S. The most important aerobic treatment system is the activated sludge process, based on the maintenance and recirculation of a complex biomass composed by micro-organisms able to absorb and adsorb the organic matter carried in the wastewater.
Some wastewater may be highly treated and reused as reclaimed water. Modern systems include tertiary treatment by micro filtration or synthetic membranes. After membrane filtration, the treated wastewater is indistinguishable from waters of natural origin of drinking quality. Nitrates can be removed from wastewater by microbial denitrification, for which a small amount of caron is typically added to provide the bacteria with a food source
Disposal of wastewaters from an industrial plant is a difficult and costly problem. Most petroleum refineries, chemical and petrochemical planthave onsite facilities to treat their wastewaters so that the pollutant concentrations in the treated wastewater comply with the local and/or national regulations regarding disposal of wastewaters into community treatment plants or into rivers, lakes or oceans. Other Industrial processes that produce a lot of waste-waters such as paper and pulp production has created environmental concern leading to development of processes to recycle water use within plants before they have to be cleaned and disposed of.
Treatment System Manufacturers
- American Manufacturing Co Inc. - The Lasaire Lagoon Aeration System provides for one of the most efficient oxygen delivery systems available. The Lasaire system provides fine bubble diffusion using weighted submerged tubing. The system has no anchoring underwater, no floating on the water and are totally accessible from dry land. The system is "air purged" preventing orifice clogging, water logging, and does not require the use of dangerous chemicals.
- Purestream Inc. - Purestream Inc. leads the way in advanced wastewater treatment equipment. Purestream, Inc. (Founded in 1971) offers standard biological wastewater treatment products, such as Extended Aeration, Sigma Low Speed Surface Aerators , Rotating Biological Contactors (RBC's) and Sequencing Batch Reactors (SBR's). Purestream ES , LLC offers the most Innovative Advanced Biological Treatment solution available today, The Biologically Engineered Single Sludge Treatment (BESST™) Process, as well as Stainless Steel Mechanical Bar Screens, Stainless Steel Microscreen Drum Filters, Screw Screens, Sand Separators, and Other Fine Products From In-Eko. We are also proud to carry the Sigma Submersible Mixer Line and Gasoline Powered Floating Pumps.