Drinking Water Filtration

White Paper: Membranes Deserve Multi-Stage Protection Membranes are extraordinarily effective at water purification at the sub-micron level – which is exactly why they need to be protected from particulate contamination. Membranes last longer, operate more productively, and require fewer cleaning cycles when they are shielded from the silt, sand, fibrous material, algae, bacteria, mollusk larvae, scale, and the other contaminants that can cripple millions of dollars’ worth of membranes in weeks or even days. Multi-stage filtration can be both efficient and cost-effective in protecting membranes

Full Scale Installation: Village Of Bartlett, Illinois

Located 35 miles northwest of Chicago, current population approximately 36,000. Average radium levels approximately 9 pCi/L. No other treatment, only the addition of chlorine and polyphosphate.

Project Profile: Ohio Willow Wood, Mount Sterling, Ohio, 30 GPM Arsenic, Iron & Manganese System

In the winter of 2006 AdEdge Technologies, Inc. was pre-selected to as the treatment vendor to provide a system for arsenic, iron and manganese removal at the Ohio Willow Wood Facility in Mount Sterling, Ohio. By Adedge Technologies Inc.

Pre-Filtering Multi Media Systems With Automatic, Self-Cleaning Filters

Riviera Water District provides potable water for a small community at Clear Lake in Northern California. This lake historically produces significant summer algae blooms and, as a natural lake, has creek sediment runoffs in the winter

White Paper: Comparing Conventional Settling Basin Clarification To Leopold Clari-DAF System Clarification

The source waters for the Greenville Water System were so clear that for over 70 years the water from the mountain reservoirs was unfiltered and only treated with chlorine. However, in the mid-1980s, the Adkins Plant, designed at 30 MGD and employing conventional settling basin clarification technology, was built to filter water drawn from Lake Keowee. Increasing regulations required all surface water systems to be filtered, so a new state-of-the-art filter plant was placed in service to provide filtration for all of the water drawn from the Table Rock and Poinsett Reservoirs. This paper compares the performances of the two treatment processes, given the fact that the source water is very similar and the treatment chemicals are identical

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3FM Filtration System

3FM (Flexible Fiber Filter Module) is the next generation, ultra-compact filtration system that can be substituted for conventional solid-liquid separation methods such as coagulation, settling, and standard filtration.

Pile Cloth Media Filtration Pilot System

Technology pilot demonstrations can be beneficial by providing a snapshot of essential process operating conditions and allowing the customer to actively interact with the technology and factory personnel.

ME Series – Pleated

Economical, Nominally Rated Pleated Cartridge Filters

H2Zero Backwash Recycle Systems

The H2Zero Backwash Recycle Systems configuration can be designed for arsenic adsorption or iron & manganese oxidation & filtration systems. Whether backwashing is infrequent (every 45-60 days in the case of adsorption for "fluffing" the media beds or performed one or more times per week using AdEdge can customize a solution to fit your need.

Filtration: Fertigation Injectors

Amiad’s Fertilizer Injectors bring accuracy and efficiency to the various needs of agriculture fertigation.

Arkal Super Galaxy Self-Cleaning Disc Filter

The Arkal Super Galaxy is a high-flow rate, self-cleaning, automatic disc filter. It is practical for water and wastewater treatment plants, central water systems for irrigation, large cooling tower power plants, ballast water, and saltwater, as it handles desalination. In addition, it controls algae and reduces hydraulic filtration degrees to less than 20 microns. Its vertical and horizontal installation options accommodate all space issues.

TurboStat™ Sidehill Static Screen

The TurboStat sidehill static screen is one of the simplest and most economical methods for solids separation. All units feature a stainless steel wedge wire filtration surface. The working principle is based on a liquid current circulating over the screen's curved surface.

Baker Filtration Systems

High and low-pressure carbon and specialty media vessels. Odor control systems. Sand filters. Duplex cartridges. Bag filters and auxiliary equipment.

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Water treatment filtration involves the removal of suspended particles from water by passing the water through a filtration medium. As the water passes through the filter, floc, minerals, microorganisms and other impurities get stuck in the filter and are removed from the filtered water. Passage can be blocked by physical obstruction, biological action, adsorption, absorption or a combination of ways. Filtration is usually the final step in the solids removal process during water treatment which typically begins with coagulation and advances through flocculation and sedimentation.

Unfiltered or turbid water is difficult to disinfect because microorganisms growing on suspended particles are often harder to kill than when they are separated from the particles. Turbidity can also cause unwanted taste and odor issues in the potable water supply. Drinking water filtration is also used to remove microorganisms that are resistant to traditional methods of disinfection such as chlorination. By requiring a low turbidity in finished water, water treatment plants are ensuring that few or no microorganisms such as Giardia are present in finished drinking water.

There are three typical methods of clean water filtration used during the water treatment process. Conventional filtration follows coagulation, flocculation and sedimentation and precedes disinfection. Direct Filtration follows coagulation and flocculation when there is no sedimentation step. The final method called In-Line Filtration takes place without flocculation or sedimentation. A coagulant chemical is added to the water just before filtration and coagulation occurs in the filter.

There are many types of filter media being used in today’s water treatment industry.

Video: Amiad AMF Filters

The Amiad automatic microfiber (AMF) filtration system delivers filtration down to the 2-micron level without the use of disposable cartridges. Polyester microfibers wound tightly around specially designed cores capture suspended solids.