Actiflo/Dusenflo Package Plants
The package plant units are engineered to provide a compact modular system in response to an ever growing demand for high performance water treatment process.
These package plants are compact and thus ideal for sites with space limitations. They are designed to offer easy access to all its components allowing efficient maintenance and inspection routines.
KEY FEATURES
The Actiflo package plants are designed to treat a wide variety of raw water. By efficiently removing turbidity, color, algae, suspended solids, metals, TOC, taste and odor, the process insures that the water it produces is of the highest quality. Though the systems are very compact, they offer nevertheless comparable performances to systems built on a larger scale.
The extremely high efficiency of the Actively ballasted floc settling process allows settling rates ranging from 40 to 200 m/h (20 to 80 USgpm/sq.ft) leaving conventional settling tanks far behind performance wise. And since the units are extremely compact and competitively priced, civil engineering costs are, as a result, greatly reduced.
The package plants consistently produce quality treated water even under rapid raw water fluctuations in flowrate, turbidity or temperature.
The package plants will reach a steady operational state very quickly (usually less than 20 minutes).
The retention time of the process is very short and consequently, the responsiveness to changes in raw water characteristics and in chemical dosages is therefore optimized. Operating the unit in a stop/start mode becomes then a major advantage when considering efficient energy management control.
Significant chemical savings of up to 40% can be achieved with the Actiflo process when compared to conventional systems. As for the Actifilter, an efficient air and water backwashing technique and specially designed underdrain nozzles make for a perfectly clean filter media and a reduced number of backwash cycles. This translates into important energy savings as well as increased water production.
HOW DOES IT WORK
ACTIFLO settling process
The particular design pertaining to the coagulation, injection and maturation tanks, the dosage of microsand and a lamellar settling process all contribute in providing a high performance and reliable water treatment system.
A coagulant is injected to the raw water upstream of the unit. The water then enters a rapid mix tank to destabilize colloidal matter.
A polymer is injected to the coagulated water. The microsand is used to weigh down the flocs. Moderate mixing accelerates the formation of polymer bridges between pin flocs, suspended solids and microsand. Larger and heavier flocs are formed.
Heavy flocs ballasted by microsand settles quickly in the lamella tube area down to the thickening hopper. Clarified water is collected in a series of troughs. Filtration and disinfection can follow, if required.
The settled sludge is continually pumped to a hydrocyclone where sand and sludge are efficiently separated. The hydrocyclone recycles the microsand back into the injection tank and discharges the sludge throughout of the process.
DUSENFLO gravity filter
The Dusenflo gravity filter features a highly efficient backwash system. The injection of water or a combination of both water and air combined with uniquely designed nozzles make for a perfectly clean filter media. The filtration bed can either consist of a single layer of sand or multiple layers of sand, anthracite or activated carbon.
Filtration rates range from 10 to 20 m/h (4 to 8 USgpm/sq.ft).
OPERATION AND CONTROL
The Actiflo package plant comes complete with all the necessary monitoring equipment including a control panel and a Human Machine Interface. In addition, field instrumentation such as a turbidimeter, a pH-meter, a chlorine analyzer and a remote monitoring system can complete the package as options.
MODELS
- The Actiflo units are manufactured in our plant and delivered pre-assembled.
- For increased treatment capacity these units may be installed in parallel.
- The units are available in two configurations: the Actiflo process alone (clarifier) or the Actifilter which combines the Actiflo clarifier and the Dusenflo filter.
- Different options are also available to complete the package.
- The pre-assembled units may be installed in a container.
- Manufacturing, delivery, installation and start-up are carried-out promptly.
MOBILE PILOT PLANT
Profiting from years of experience, know-how and numerous treatment plant installations and pilot plant testing, John Meunier Inc. is able to precisely pinpoint the type of treatment best suited for a given application. Mobile pilot plants are available to provide on-site confirmation of the treatment efficiency. The main mobile pilot plant can reach a capacity of up to 125 m3/h (600 USgpm) and features a fully equipped laboratory including state of the art instrumentation.
N/A, 6290 Perinault, Montreal, H4K 1K5. Tel: 514-334-7230; Fax: 514-334-5070.