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[...]Zaragoza, Spain[...]

[...]Mechanical sludge thickening to reduce sludge volume Before sludge with a very high water content is subjected to further treatment, it is a good idea to reduce its volume by thickening. This also increases the solids content of the sludge. If sludge with a solids content of 1% is thickened to 6% solids, this gives a volume reduction of more than 80%. The thickening of the sludge is effected by separating sludge water; thin sludge becomes thick sludge. It is viscous but still pumpable. Sludge Volume Reduction Excess Sludge Thickening Sludge settles in gravity thickeners and is compressed by[...]

[...]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[...]

[...]Efficient and reliable removal of coarse material from sludge For the operational safety of sludge treatment processes, it is advantageous if the sludge is as free as possible of coarse material and disturbing solids (e.g. paper, plastics, fibers, and hair). Otherwise, repeated malfunctions of aggregates and processes may occur in pumps, but also during thickening, dewatering, or drying, these can be time-consuming, costly to rectify, and require increased manpower. For the agricultural recycling practiced in many regions of the world, it also makes sense to separate all solids, such as plastic[...]

[...]Sludge Drying Cost reduction on sludge transportation and disposal costs. Efficient solutions to minimize the volume of sludge for disposal Wastewater sludge is dried to minimize its mass and save sludge transport and disposal costs. Handling and storage of dried sludge is cost effective, plus any further disposal and utilization methods are made possible. The dried product can be used as fertilizer, as well as fuel – the calorific value of fully dried sludge is similar to that of brown coal. Thermal energy from different energy sources Thermal drying involves the evaporation or vaporization of [...]

[...]Solutions for cost-efficient sludge dewatering Sewage sludge produced in municipal and industrial wastewater treatment plants requires dewatering prior to further treatment or utilization. Rising costs for sludge disposal make it necessary to concentrate the sludge to a high solids content. Mechanical sludge dewatering is used to reduce the amount of sludge by separating sludge water. A more or less firm sludge cake is produced. Prior to its dewatering, fed sludge is first flocculated by addition of polymers (sludge conditioning). Sludge Conditioning Economic Sludge Dewatering For the economic [...]

[...]Sliding hatch cover, constructed entirely of 1.4307 (AISI 304 L) stainless steel, with a smooth finish. The sliding cover provides access to downward leading stairs. The cover is made from durable stainless steel plate and features plastic rollers with maintenance-free journal bearings. It is installed in an external guide rail, ensuring it cannot be removed. The cover can be securely locked when closed using a cylindrical lock. The rails consist of 60/40/2 mm rectangular section fixed with dowels along the rail edge. Manhole cover and rails shielded arc-welded, acid-treated in a pickling bath[...]

[...]Access door for buildings in potable water supply where chlorine gas is stored or used Chlorine room door, pre-assembled and ready for installation, single door, double-skinned, constructed entirely from 1.4404 (AISI 316 L) stainless steel featuring a double rubber seal. The door and frame close flush, and the door opens outward (in direction of escape), compliant with OSHA standards. Door with a 1 mm skin, 2 in. / 55 mm thickness, featuring injected CFCs-free polyurethane hard foam insulation, a longitudinally ground surface finish, door inside lacquered in RAL 9006 (stainless steel look), [...]

[...]Access door for water chambers, ready for installation, single door, double skinned Completely made from 1.4404 stainless steel (AISI 316 L), with double rubber seal. The door and frame closing flush, the door opening to the outside (in escape direction). Door leaf, skin: 1 mm , 2 in. / 55 mm thick, with injected CFCs-free polyurethane hard foam insulation, longitudinally ground surface finish, door seal certified to KTW and DVGW W270 standards. Fastened to the frame with stable maintenance-free hinge plates. Mortise dead lock completely made from stainless steel according to DIN 18251, class 3,[...]

[...]Access door for buildings in the field of potable water supply and wastewater disposal with average security requirements. Door, ready for installation , single door, double skinned, completely made from 1.4307 (AISI 304 L) stainless steel, with double rubber seal, the door and frame closing flush, the door opening to the outside (in escape direction). Door leaf , skin: 1 mm, 2 in. / 55 mm thick, with injected CFCs-free polyurethane hard foam insulation, longitudinally ground surface finish, with rubber seal. Fastened to the frame with stable maintenance-free hinge plates. Mortise dead lock [...]