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[...]HUBER solutions for permanent safe drinking water supply and distribution In water networks, many manholes are installed to accommodate branches, shut-off valves, backflow preventers, and sampling points. The manholes must be securely covered, sealed, and well ventilated. In addition, they must be safely accessible via step irons or ladders. HUBER supplies permanently safe stainless steel components for manhole equipment: Manhole covers Venting chimneys Safety access ladders and safety climbing systems with guard rail Entrance aids Pre-fabricated stainless steel manholes HUBER stainless steel [...]

[...]Complete system solutions for drinking water reservoir equipment HUBER has been committed to the development and supply of equipment for drinking water reservoirs for decades and relies on stainless steel material. A wide range of standardized products as well as complete system solutions have been developed. The product range includes manhole covers , venting chimneys , access ladders , doors , louvres , windows , and pressure-tight doors . Many standardized parts are even available from stock at short notice. In addition, HUBER develops taylor-made solutions together with the customer. Reliable[...]

[...]Process engineering solutions for the treatment of drinking water For the production of drinking water (especially when surface water is used), physical process steps are often necessary to remove solids of different types and sizes. HUBER has customized mechanical and process engineering solutions for the various applications: Specially developed screens for water abstraction remove all inadmissible coarse and solid matter from the raw water from rivers and seas. If required, suitable devices for fish protection can also be provided. Particularly in the case of machine technology for seawater [...]

[...]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, for example with a lamella separator. Filtration: The clarified water is then filtered in order to separate even the smallest solids and flocs. Depending on the requirements, single-layer [...]

[...]Reliable pre-treatment for septic sludge Wherever wastewater is not fed to a sewage treatment plant via the sewer system, but is treated decentrally, septic sludge is produced. This septic sludge collects either in simple septic tanks or in more modern small wastewater treatment plants and must be removed at regular intervals to be treated in a central plant. Where possible, this is done at a centralized wastewater treatment plant with sufficient surplus capacity; but where such a plant is not available nearby, a separate onsite plant for the complete treatment of septic sludge can also be built. Septic[...]

[...]The first step of operationally reliable and efficient wastewater treatment The separation of solids in wastewater with screens and fine screening systems is the first step in municipal and industrial wastewater treatment. The main task here is to remove all coarse and foreign materials that could inhibit or hinder the function of subsequent wastewater treatment stages. The following factors, among others, must be taken into account when planning an operationally reliable solids separation solution: Maximum required hydraulic throughput Expected screenings quantities Required bar spacing or [...]

[...]Reducing screenings volume and disposal costs The screenings from municipal wastewater treatment mainly consist of household waste-like materials, feces, paper, and mineral particles. The screenings volume depends on the aperture size of the screening system. The solids content of municipal, untreated screenings varies from 5 – 20 %, depending on the type of screen. The organics contained in the screenings amount on average to approx. 90 % of the dry residue [DR]. The objectives of screenings treatment are: Dewatering of the screenings and thus reduction of screenings weight and volume. This [...]

[...]Minimize wear and increase operating reliability For the operating safety and reliability of wastewater treatment plants, it is necessary to separate the grit transported with the wastewater and other mineral materials from the putrescible organic matter. For this purpose, grit chambers of various designs are used in practice. Depending on the type of grit trap, grease can also be separated in addition to grit. The removal of grit from the wastewater serves to prevent operational troubles, such as grit sedimentation (in aeration tanks and digesters), increased wear (of pumps, stirrers) and [...]

[...]Elimination and reduction of micropollutants with the PAC process Trace substances can be removed from wastewater with the help of powdered activated carbon (PAC), as the micropollutants adsorb to the activated carbon. Powdered activated carbon is ground activated carbon. According to DIN 12903, at least 95 percent of the mass fraction must have a grain size of less than 150 micron. The average particle diameter of typical powdered activated carbons is approximately in the range of 10 micron to 50 micron. For the elimination of micropollutants, the powdered activated carbon is added directly[...]

[...]Reliable compliance with effluent values In conventional municipal wastewater treatment plants, the final settling tank is the last stage of the wastewater treatment process. The purpose of the secondary clarifier is to allow the activated sludge flocs and the finest suspended solids to settle and to discharge the clarified wastewater into the receiving water as free of solids as possible. Increasing hydraulic loads and changes in the settling behavior of the activated sludge are the reason why wastewater treatment plants often do not reliably meet today's minimum requirements for solids retention[...]