The essential challenges of today are to ensure cost effective treatment and recycling processes for water and wastewater. Membrane technology solves this task by being an innovative and trendsetting technology. Today membranes are successfully used for the treatment of municipal and industrial wastewater as well as for the production of drinking and process water from surface water. Membrane technology and membrane bioreactors (MBR) are especially important in arid zones for the recovery of clean water for reuse...
Water is increasingly gaining importance. Not only is this the case in arid regions but also in countries like Germany. Water is a limited resource and is necessary for the preservation of human life and economic growth. In both cases quality and availability play a major role.
Membrane units, in our days are widely used in the water pre-treatment preparation and are becoming one of the most important technologies in the production of high pure water. Nevertheless they often face problems with scaling and fouling and are therefore limited by frequent maintenance, downtime and high costs. Our treatment programs are specifically designed for membrane units like reverse osmosis, ultra- and nanofiltration and enable to remove or preventive control scaling and fouling. Our main target is to...
Many wastewater streams contain suspended solids that need to be disposed of or cause problems in ‘downstream’ wastewater treatment systems. Effective TSS removal is an important step to purify water sufficiently for reuse, thereby lowering the requirement for fresh water.
As most tropical countries face unpredictable rain falls, building sites have to be managed differently. In Singapore an effective Erosion Control Measure (ECM) was required at a building site, in order to treat the storm water before discharging it to the public drain.
Membrane technology has made major progress in recent years and is nowadays the method of choice for many processes in the chemical industry, wherever substances are to be separated efficiently and gently.
A prime example of this is dia-filtration, in which solutes and particles with higher molecular weights are retained while solutes with lower molecular weights are "washed" out of the process fluid.
Biological fouling of reverse osmosis is a common problem leading to reduced efficiency and reduced membrane life. CleanOxide Liquid 75 is pure Chlorine dioxide which is a highly effective biocide ideal for use in reverse osmosis systems. CleanOxide Chlorine Dioxide has all the important regulatory approvals in Australia and overseas to be used in water treatment and food processing. Many strategies have been developed in an effort to control biofouling of Reverse Osmosis membranes including the use of sodium...
QUA® is an innovator of advanced membrane technologies that address the most demanding water challenges. QUA’s products enable its OEM partners to provide cutting-edge solutions to end users in industrial & infrastructure markets worldwide. The company’s diverse product portfolio includes FEDI® (fractional electrodeionization), Q-SEP® (hollow fiber ultrafiltration membranes), CeraQ™ (Ceramic Filters), and EnviQ™ (flat sheet submerged ultrafiltration membranes).
Our filtration products help you
Reverse Osmosis or RO is a system used to produce an ultra-high quality of water with use of membrane. Reverse Osmosis plants are required in many production processes. Damage to these high quality membranes can easily be caused if no pre-filtration is in place to protect the system from high loading, this can result in extremely high costs of repairs, ranging from tens of thousands to millions, not to mention the loss of production to a company if as a result of plant failure production has to be stopped until...
Reverse Osmosis Polishers can concentrate BOD/COD from evaporator condensate and RO permeate streams to reduce waste water. Polished water can also be re-used in plant for boiler water make-up and CIP systems. In Dairy Industry applications, `polishing` of these process water streams aids in the production of Class I water for re-use from dairy products as defined and regulated under Food & Drug Administration rules. Water produced with this technique is also very soft, generally resulting in lower cleaning...
QUA’s CeraQ ceramic membrane modules
are designed for challenging water and
wastewater applications. The CeraQ
modules consist of 3.5 mm ID ceramic tubular
elements potted into bundles for various
surface area requirements. The module is
capable of removing virus, bacteria, colloidal
matter, submicron or micron sized suspended
particles, oil and organics from a wide range
of fluids, including drinking water and
industrial wastewater to economically meet
variety of treatment objectives or to recycle
Chemical purity of water is assessed for a wide variety of different chemicals depending on the type of water and applicable local legislation.
Chemical analysis of water can include testing for nitrogen compounds, dissolved heavy metals, and total and dissolved organic carbon.
Common water monitoring applications include:
Determination of suspended solids in waterusing for example glass fiber filters.
Chemical analyses of for example heavy metals, dissolved organic carbons (DOC), and ions.
THE AQQA FILTRATION TECHNOLOGY IS USED IN WASTEWATER TREATMENT TO: seperate the mixed liqour from the clear water phase in Membrane Bio Reactors (MBR). remove bacteria and virus from wastewater. remove particles (and attached organic and inorganic material) from any wastewater, thus reducing the freight of chemicals and the charges for the COD load (e.g. in Germany).
AQQA is used in industrial wastewater treatment to: separate the sludge from the clear water in membrane bio reactors. constitute the final filtration of the effluent of standard sewage treatment plants (tertiary treatment). keep specialized bacteria in the system, that can biologically degrade organic matter. enable Zero Liquid Discharge: prefiltration for reverse osmosis systems.
In desalination plants it is of great importance for the operation of the entire plant that the pre-treatment of the water is good before the salt is to be removed. For reverse osmosis (RO) desalination plants a good pre-treatment is essential for avoiding membrane fouling, resulting in reduced water production and increased operational costs.
Today ceramic MF/UF membrane filtration for treatment of drinking water is becoming more and more accepted as a viable treatment method. This trends is mainly driven by an increasing demand for a more effective removal of especially challenging feed water containing:
In waste water treatment systems our membranes are used with great success for the filtration of cleaning chemicals (surface treatment), for cell separation after biological processes, or for the recycling of paints and lacquers.
THE AQQA® technology is used onboard ships to: treat the wastewater in membrane bio reactors so that it complies with the regulations of the IMO (International Maritime Organization) for discharge into the sea in special areas ensure clear wastewater effluent with bathing water quality