Drinking water can be produced from any natural sources like groundwater, lakes and rivers (surface waters) or seawater. Drinking water standards are set by the World Health organisation or by the European Union. Drinking water must be free of suspended solids, microorganisms and toxic chemicals. Mineral concentration recommendation vary from country to country but most of the minerals have a maximum concentration recommended to ensure safe, equilibrated and pleasant water to drink.
Mercury determination in natural, drinking, and waste waters is one of the most popular analyses used for environment pollution and sanitary control. Background concentrations of mercury in natural water are within several ng/l. Maximum national permissible levels for mercury in water lie in the range of 0.16–6 µg/l. For example, the following limits for mercury in drinking water are set, µg/l: 0.5 – Japan, Russia; 1 – Argentina, Australia, Brazil, China, EC; 2...
Carus permanganates have been used in private and public drinking water applications for more than 40 years. Municipal drinking water plants use CAIROX® and AQUOX® potassium permanganates, and CARUSOL® liquid permanganate in both ground water (well) and surface water for Pretreatment, Pre-oxidation and Organics Removal. Today, municipal water providers face increased challenges as more stringent regulations are enacted and public awareness regarding water quality becomes heightened.
Problem: Drinking water plants that use surface water or ground water under the influence of surface water are susceptible to high levels of organic matter in the raw water. Reduction of organic matter through coagulation/sedimentation and filtration is important to lower the potential for disinfection by-product formation (DBP) and limit operational problems. In addition, organics in water consume the polymers used for the coagulation process, which reduces the efficiency of the treatment. Therefore, optimization...
atg UV Technology is a clear market leader for ground water and surface water UV disinfection. With a large range of independently 3rd party validated UV systems to the US EPA UVDGM (2006) protocols and NWRI Drinking Water and Water Reuse protocols, atg UV Technology can offer both low pressure amalgam and medium pressure UV solutions for flows of 1 m3/hr to over 5,000 m3/hr.
STS has been a hydrologist partner for many years, and through this work we have developed the experience to become specialists in the monitoring of river, lake and ground water levels. Measuring groundwater level is critically important for identifying long term trends, including declining water levels, saltwater intrusion, seasonal variations, aquifer recharge, artificial aquifer storage and recovery, and level status for drinking water.
Problem: A challenging aspect of drinking water treatment is often predicting or monitoring the changes that occur with incoming water quality. Seasonality, weather events, agricultural practices or upstream discharges can influence the quality of both ground and surface water over time. With multiple variables impacting source waters, monitoring historical trends may not be sufficient to predict raw water changes or detect uncharacteristic events.
Problem: Nitrate, the most stable form of nitrogen in water, is found in both ground and surface water and originates from both natural and anthropogenic sources. Due to its high solubility in water, nitrate is not filtered out from groundwater like other contaminants. Removing nitrates from source water is important as elevated levels in drinking water can cause serious health effects when ingested.
Hexa-Cover Floating Cover provide an ideal cover for all forms of water i.e.: Reservoirs for Fire Protection Reservoirs for Fire Protection, Spill over tanks Spill over tanks, Wastewater Wastewater tanks, reservoirs, Cooling water Cooling water, Process water Process water, Reserve water reservoirs Reserve water reservoirs, Compensation tanks Compensation tanks, Irrigation Reservoirs for Irrigation, Collected surface water Reservoirs for reuse of collected surface water, Water settlement lagoons Water settlement...
All surface waters contain varying amounts of naturally occurring organic acids. The most commonly encountered being tannic and humic. These substances have varying molecular weights and varying amounts of carboxylic functionality. There has been much interest in the removal of these substances from drinking water supplies due to their tendency to form THM`s when chlorinated. They can be removed effectively by use of anion exchange resins operated in the chloride cycle. Because the organics can be removed by...
TDA Aerator diffuser can be used in aerobe and an-aerobe phase of (waste-) water treatment(wwtp) at all sort of industries. Ideal for biological treatment aeration and reliable for the treatment of industrial wastewater or sewage water.
the perforated surface of the membrane sleeve makes tube diffusers a perfect solution for all types of chambers and applications.
The exhalation of air through the bottom grooves decreases the depositing of activated sludge underneath the ventilation which means less cleaning...
The world’s surface is slightly over 70% water with billions of gallons of surface water and ground water used daily in society. Whether it is for drinking, hygiene, washing, cooking, recreation, agriculture, or power generation and industrial coolants, water is an undeniable source of life.
Water suppliers typically test for radionuclides once or twice a year. Most drinking water supplies are surface water; reservoirs, rivers, treatment plants. Current vulnerability to terrorist attack or industrial accident is a critical public safety consideration. No other vendors have duplicated US Nuclear Corps’ Technical Associates Continuous Real-Time Water Monitoring systems. Globally Technical Associates is the sole source for this level of monitoring for both drinking water and waste water. This...
You go all out to produce only the best culinary creations, so how pure is your water? Water purity can have a huge impact on the flavor, aroma, visual appearance, healthfulness and even shelf life of your foods. Many beverages such as coffee and teas can be up to 99% water, so is it any wonder that water purity makes it taste so much better? When made with our pure water, alcoholic drinks don’t have the oil slick floating on the surface. Sushi masters in Japan love how our water makes sushi rice ‘pop&r...
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
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...
Groundwater is in contact with soil and rock minerals. Significant amounts of the minerals are dissolved in the groundwater. Elevated water hardness is the result of the water interaction and partial dissolution of carbonate minerals.
Scale formation is a crystallisation process. Crystals are a highly organised arrangement of molecules. The determining circumstances for a successful crystallisation event include concentration, temperature, pressure and chemical environment. Suitable conditions for the formation...
Pharmaceuticals are now shown to be found in surface, ground, and drinking waters around the world. This could create some potentially damaging environmental effects. Minuscule concentrations of chemicals known as endocrine disruptors, often found in pharmaceuticals, are having detrimental effects on aquatic animals and possibly on human health and development.