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[...]Treat and reuse process water and waste water Water reuse makes it possible to use water in cycles. This reduces both the consumption of fresh water and the amount of wastewater produced. Water recycling and reuse in industry in the context of "ZLD - Zero Liquid Discharge" plays an important role with regard to the economical use of water as a resource. The importance of irrigating agricultural land with treated municipal wastewater is also widespread in many countries, especially those with less rainfall, and will continue to increase due to climate change and the need for a sustainable "circular[...]

[...]Complete process technology for the treatment of surface water Surface water can be treated into drinking water using the following physical, mechanical and chemical process steps: Coagulation: Dosing a coagulant to the raw wastewater Flocculation: Dosing a flocculant, and possibly a flocculation aid, to the raw wastewater results in the formation of flocs. Clarification: The flocs are separated from the water e.g. with a lamella separator. Filtration: The clarified water is then filtered to separate even the smallest solids and flocs. Depending on the requirements, single-layer or multi-layer[...]

[...]Various solutions for conveying dewatered and dried sewage sludge Sludge transport plays an important role in the planning and construction of sludge drying plants. On the one hand, the dewatered sewage sludge has to be brought into the dryer and on the other hand, the fully or partially dried sewage sludge has to be transported away from the dryer. When designing a particular transport solution, important criteria include not only the required transport capacity but also the sludge properties (moist, dry, sticky, dusty,...) and the desired degree of automation. Feeding and Removing Supply and[...]

[...]Heating with the Sewage Treatment Plant Effluent Treated wastewater as a regenerative energy source with high energy potential The effluent of a sewage treatment plant represents a great potential for heat recovery and can make an important contribution especially to energy-efficient retrofitting of sewage treatment plants. All the wastewater that has been fed to the treatment plant via the sewage system is discharged into the receiving watercourse via a central outlet after treatment, so that large quantities of water are always available here. In addition, due to biological processes taking [...]

[...]Future-oriented and sustainable solution for heating and cooling of buildings The HUBER ThermWin process allows heating and cooling of buildings by using the wastewater in the sewer system as a regenerative energy source. Right below the ground, in sewers, is a hidden and seldom used source of energy: our wastewater. Its temperature is usually between 12° and 20° C and hardly drops below 10° C even in winter, making wastewater an ideal energy source for operating a heat pump. All larger buildings and local heating networks are suitable consumers of the heating energy obtained in this way. The Process[...]

[...]Adsorption with granulated activated carbon (GAC, German GAK) is a simple, reliable and, above all, low-maintenance process. This makes it ideal as a fourth treatment stage, especially for smaller wastewater treatment plants. The core component of the process is the HUBER Active Carbon Filter CONTIFLOW® GAK , which is filled with granulated activated carbon and acts as an adsorber for the micropollutants. The particle size of granulated activated carbon (GAC) is usually between 0.5 mm to 4 mm. GAC Granulated Activated Carbon The HUBER Active Carbon Filter CONTIFLOW® GAK is installed [...]

[...]Denitrification in the sand filter for nitrogen reduction Nitrogen is a basic building block of life and nature and, like phosphorus, is indispensable as a nutrient for all humans, animals and plants. Municipal wastewater contains various nitrogen compounds (including organically bound ammonium and nitrate). The removal of nitrogen is one of the main tasks of municipal biological wastewater treatment, because without sufficient nitrogen removal, the discharge of wastewater into receiving waters has significant negative effects on water quality and thus on flora and fauna. Denitrification Downstream[...]

[...]Optimisation of existing treatment concepts through adapted machine technology Industries that produce wastewater with above-average pollution levels must either pre-treat it before discharge into the sewer or treat it completely biologically before it can be returned to water bodies. The relevant regulations result from the Water Resources Act, or from local statutes and environmental legislation. Since these industries can usually provide wastewater treatment with comparatively few resources, necessary optimisations are often not undertaken, and this is reflected in particular in increased [...]

[...]Using the thermal energy of process water to reduce operating costs Much of the industrial wastewater comes from the food production sector: slaughterhouses, breweries and beverage industry, distilleries and dairies. Wastewater from the chemical industry or mineral oil processing is also part of industrial wastewater. Independent of the specific industry sector, these different types of wastewater have one thing in common: the high energy content of the wastewater streams. Recovering thermal energy from process water The reuse of thermal energy already contained in the production cycle is becoming [...]

[...]Treatment of polluted stormwater to protect water and soil Road wastewater treatment plants are used for heavily frequented roads. The task of such a plant is to filter rainwater that runs off roads before it is discharged into a body of water or into the ground. Road run-off is stormwater containing coarser solids such as gravel, sand and litter, as well as significant amounts of finer solids such as abrasion from car tyres (microplastics). Road wastewater occurs whenever it rains, and its quantity depends on the amount of rainfall. Technology for Road Wastewater Treatment Plants Intermediate [...]