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[...]Access door for buildings in the field of potable water supply equipped with a burglar alarm system Security door, burglar and attack proof , certified to security of DIN EN 1627, resistance class RC3, ready for installation, double skinned, completely made from 1.4307 stainless steel (AISI 304 L), with double rubber seal, the door and frame closing flush, the door opening to the outside (in escape direction). Sound insulation: 34/29 dB . Security class RC3 is recommended by the criminal investigation department if the building is additionally secured by means of a burglar alarm system. Door leaf 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. The closed door engaging flush with the frame by means of solid anchor bolts engaging in the frame for four-point locking. Galvanized safety lock with stainless steel forend, with austenitic manganese steel plate as anti-drilling protection, provided for a customer-provided mechanical profile half cylinder in accordance with DIN 18252:2006-12,21-,31-,71-BZ), with anti-panic lock, i.e. the door can any time be opened from inside by operating the handle, even when locked. Protective stainless steel fitting, without cylinder cover, with a rigidly mounted turning handle and a red plastic handle inside. Frame, three-sided , fabricated from special section, with inserted rubber seal, with step flashing, including fixing material. Frame and door shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Options 1.4404 (AISI 316 L) stainless steel One/two security ventilation louvre(s) size 500 x 300 mm Provided for a customer-supplied digital profile cylinder with anti-panic function and pulling protection Upper door closer, lockable in position One-part or two-part door arrestor Lowerable floor seal Lockable from inside with a second handle Surface finish (lacquer with or without anti-graffiti properties, copper covering, wooden panelling) Electronic monitoring options (alarm system in door surface, magnetic contact, lock-bolt contact) Door heating (heating cable in frame and/or door surface), without temperature sensor, without controls Lock for two side-by-side profile cylinders (that can be opened independently) Stainless steel rain protection rosette for the stainless steel profile cylinder Block frame insulation Potential equalisation on frame Steel sheet finish for exterior door surface for installations exposed to sunlight Frame / mounting Options: Z-frame – bolted with dowelling clips Block frame – bolted with dowelling clips Block frame – bolted through the frame Door opening Options: Hinges on left Hinges on right Note: If the door is exposed to sunlight, its operability may be affected. In such a case, it is recommended to equip the door outside with a wood panelling or steel sheet.[...]

[...]Access door for buildings in the field of potable water supply without a burglar alarm system Security class RC4 is recommended by the criminal investigation department if the building is not secured by means of a burglar alarm system. Security door, burglar and attack proof , certified to security of DIN EN 1627, resistance class RC4, ready for installation, single-leaf, double skinned, completely made from 1.4307 stainless steel (AISI 304 L), with double rubber seal, the door and frame closing flush, the door opening to the outside (in escape direction). Sound insulation: 34/29 dB. Door leaf 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. The closed door engaging flush with the frame by means of solid anchor bolts engaging in the frame for four-point locking. Additional protection of the internal lock box through an attack-proof protecting plate with anti-panic function. Galvanized safety lock with stainless steel forend, with austenitic manganese steel plate as anti-drilling protection, provided for a customer-provided mechanical profile half cylinder in accordance with DIN 18252:2006-12 42-,82-BZ, with anti-panic lock, i.e. the door can any time be opened from inside by operating the handle, even when locked. Protective stainless steel fitting, with cylinder cover, with a rigidly mounted turning handle on the stainless steel outside cover and a red plastic handle inside. Frame, three-sided as block frame , with inserted rubber seal, with step flashing, including fixing material. Frame and door shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Options 1.4404 (AISI 316 L) stainless steel One/two security ventilation louvre(s) size 400 x 200 mm Provided for a customer-supplied digital profile cylinder Upper door closer, lockable in position One-part or two-part door arrestor Lowerable floor seal Lockable from inside with a second handle Surface finish (lacquer with or without anti-graffiti properties, wooden panelling) Electronic monitoring options (alarm system in door surface, magnetic contact, lock-bolt contact) Door heating (heating cable in frame and/or door surface), without temperature sensor, without controls Lock for two side-by-side profile cylinders (that can be opened independently) Block frame insulation Potential equalisation on frame Steel sheet finish for exterior door surface for installations exposed to sunlight Mounting: Bolted with dowelling clips Bolted through the frame Door opening options: Hinges on left Hinges on right Note: If the door is exposed to sunlight, its operability may be affected. In such a case, it is recommended to equip the door outside with a wood panelling or steel sheet.[...]

[...]Security door, burglar and attack proof, certified to security of DIN EN 1627, resistance class RC3, ready for installation, single-leaf, double skinned, watertight up to 1.2 m WG, completely made from 1.4307 (AISI 304 L) stainless steel, with double rubber seal, the door opening to the outside (in escape direction). Door with injected CFCs-free polyurethane hard foam insulation. Longitudinally ground surface finish, with rubber seal. The closed door engaging flush with the frame by means of solid anchor bolts engaging in the frame for four-point locking. Fastened to the frame with stable, maintenance-free special hinge plates that compensate for increasing water pressure. Galvanized safety lock with stainless steel forend, with austenitic manganese steel plate as anti-drilling protection, provided for a customer-provided mechanical profile half cylinder in accordance with DIN 18252:2006-12,21-,31-,71-BZ), with anti-panic lock, i.e. the door can any time be opened from inside by operating the handle, even when locked. Protective stainless steel fitting, without cylinder cover, with a rigidly mounted turning handle and a red plastic handle inside. Handle set above the maximum water column. Frame, four-sided, with injected CFCs-free polyurethane hard foam insulation, made of stainless steel, for on-site installation, mounting and sealing materials included. Frame and door leaf shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Maximum permitted leakage rate: 0.3 litres/hour Options 1.4404 (AISI 316 L) stainless steel Upper door closer, lockable in position Upper door arrestor, releasable by hand Lockable from inside with a second handle Magnetic contact: “door open” or “door closed” status display Lock-bolt contact: “locked” or “unlocked” status display Potential equalisation on hinge side on top of frame Surface finish (lacquer with or without anti-graffiti properties) Lock for two side-by-side profile cylinders (that can be opened independently) Stainless steel rain protection rosette for the stainless steel profile cylinder Rain rail on top of frame Steel sheet finish for exterior door surface for installations exposed to sunlight Frame / mounting Options: Bolted with dowelling clips Bolted through the frame Door opening Options: Hinges on left Hinges on right Note: If the door is exposed to sunlight, its operability may be affected. In such a case, it is recommended to equip the door outside with a steel sheet finish.[...]

[...]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, 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 according to DIN 18251, class 3, with increased corrosion protection, stainless steel forend, provided for a customer-provided profile double cylinder (mechanical or digital), handle and cover of stainless steel. Frame, three-sided , fabricated from special section, with inserted rubber seal, with selectable sill closure, including fixing material. Frame and door shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Options Frame: Z-frame Block frame Mounting: Embedded Bolted with dowelling clips Bolted through the frame (not to affect the finished wall) Door opening options: Hinges on left Hinges on right Sill closure: With step flashing Without step flashing Other Options : 1.4404 (AISI 316 L) stainless steel Panic lock Upper door closer, lockable in position One-part or two-part door arrestor Surface finish (lacquer with or without anti-graffiti properties, wooden panelling) Electronic monitoring options (alarm system in door surface, magnetic contact, lock-bolt contact) Door heating (heating cable in frame and/or door surface), without temperature sensor, without controls Potential equalisation on frame Security ventilation louvres, openings to admit light Steel sheet finish for exterior door If the door is exposed to sunlight, its operability may be affected. In such a case, it is recommended to equip the door outside with a wood panelling or steel sheet.[...]

[...]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 , 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, provided for a customer-provided profile half cylinder, lockable only from the dry side. Stainless steel door handle set with button outside and handle inside. Frame, three-sided , fabricated from special section, with inserted frame seal certified to KTW and DVGW W270 standards, selectable sill closure, including fixing material. Frame and door shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Options Frame: Z-frame Block frame Mounting: Embedded Bolted with dowelling clips Bolted through the frame (not to affect the finished wall) Door opening options: Hinges on left Hinges on right Sill closure: With step flashing Circumferential block frame on four sides Other Options: Upper door closer, lockable in position (mounted on the dry side) One-part or two-part door arrestor Electronic monitoring options (alarm system in door surface, magnetic contact, lock-bolt contact, block lock) Potential equalisation on frame (dry side)[...]

[...]Access door for buildings in potable water supply where chlorine gas is stored or used Chlorine room door, ready for installation, single door, double skinned, completely made from 1.4404 (AISI 316 L) stainless steel, with double rubber seal, the door and frame closing flush, the door opening to the outside (in escape direction), in accordance with UVV and DVGW standards. Door, skin: 1 mm , 55 mm thick, with injected CFCs-free polyurethane hard foam insulation, longitudinally ground surface finish, door inside lacquered in RAL 9006 (stainless steel look), with rubber seal. Fastened to the frame with stable maintenance-free hinge plates. Two aeration slits, W x H = 100 x 20 mm (one in top door section, one in bottom door section), with plastic insect screen. Galvanized mortise dead lock with stainless steel forend provided for a customer-supplied profile double cylinder, with anti-panic function. Stainless steel door handle set, button outside, handle inside. Frame, three-sided , fabricated from special section, with inserted rubber seal, with step flashing, including fixing material. Frame and door shielded arc-welded and acid bath cleaned before washing, drying and surface passivation. Options Frame: Z-frame Block frame Mounting: Embedded Bolted with dowelling clips Bolted through the frame not to affect the finished wall Door opening options: Hinges on left Hinges on right Other Options: Upper door closer, lockable in position One-part or two-part door arrestor Surface finish (lacquer with or without anti-graffiti properties, wooden panelling) Electronic monitoring options (alarm system in door surface, magnetic contact, lock-bolt contact) Door heating (heating cable in frame and/or door surface), without temperature sensor, without controls Potential equalisation on frame Security ventilation louvres, openings to admit light Steel sheet finish for exterior door surface for installations exposed to sunlight[...]

[...]Sliding hatch cover, completely made of 1.4307 (AISI 304 L) stainless steel, with smooth finish. The sliding cover provides access to downward leading stairs. The cover is made of a stable stainless steel plate and equipped with plastic rollers and maintenance-free journal bearings. The cover is installed in an external guide rail and cannot be removed. Locking when closed is possible by 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 and passivated. Operating key included. Options 1.4404 (AISI 316 L) stainless steel Special design available on request Dimensions according to individual requirements. Available as: Straight version Circular version[...]

[...]Wanlip - Leicester, UK A HUBER Technology Wastewater Case Study HUBER Technology recently completed a project for Severn Trent Water at Wanlip STW on the outskirts of Leicester. This was a project that had been looked at for a long period of time but was commissioned in early 2020. Project Profile This project was part of the upgrade to the sites indigenous sludge treatment to replace ageing step screens, which were installed in the 1990’s. HUBER Technology were first involved in the project in the late 2000’s to see what options were available to improve the process. The challenge was to improve the sludge screening on the site but we were constrained by the location of the screens at high level receiving the pumped sludge. HUBER Technology Supplied 2 x HUBER Sludge Acceptance Plant ROTAMAT ® Ro3/1200/6 tank mounted sludge screens 2 x HUBER Severn Trent Water specification control panel Objective The primary objective was to improve the sludge screening on site to prevent screenings that had bypassed the inlet works entering the picket fence thickeners and further downstream parts of the treatment process within the constraints of the high-level sludge screening area. Solution As outlined above this was a project that HUBER Technology had been involved with for a long time with various contractors. We had previously looked at utilising the existing 600mm concrete channels but these were no longer wide enough for the increased flow rate. The current screens were installed in a building but this was deemed to be beyond repair and was removed, this allowed clear access for the new screens. The tank mounted screen were mounted alongside the existing channel retaining the original upstream balancing tank. Flow from the balancing tank then flowed to each of the two screens whilst maintain a bypass channel between the screens if it was required. The screens sludge was discharged back into the original channel prior to it being fed to the adjacent picket fence thickeners. Each screen was provided with its own dedicated control panel fully built to Severn Trent Waters specification. Product Profile HUBER Sludge Acceptance Plant ROTAMAT ® Ro3 – The robust and efficient Ro3 has become the most popular system of its kind. Its superior design and engineering guarantee the most dependable operation day after day, year after year. The main component of the Sludge Acceptance Plant ROTAMAT® Ro3 is the reliable Fine Screen ROTAMAT® Ro1. It excels with its high capacity, good separation efficiency and low head loss. Another exceptional feature is its integrated screenings press with all its benefits. The Fine Screen ROTAMAT® Ro1 is extremely sturdy, able to deal with rocks and grit, and entirely made of stainless steel. It is fully self-cleansing as its rake tines fully engage the basket bars. With over 500 units installed in the UK and just under 100 supplied to Severn Trent Water since 1988. “Having been involved with this project for over 10 years it’s great to see finished solution completed on site at Wanlip. Severn Trent Water should hopefully see the huge benefit this technology brings to the downstream process very quickly.” Richard Willis-Area Manager Key Features & Benefits High capacity to minimise waiting time for tank discharge High separation efficiency Often used with Sludgecleaner STRAINPRESS® to provide a robust 2 stage sludge screening and dewatering process Automated operation of the raked bar screen Fully enclosed to eliminate odour Intergrated screenings washing and compaction in a single unit Low maintenance - fully self cleaning as its rake tinesfully engage with the basket bars 500+ successful UK installations[...]

[...]Solutions for cost-efficient sludge dewatering Sewage sludge produced in municipal and industrial wastewater treatment plants requires dewatering prior to further treatment or utilisation. 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 operation of a sludge dewatering system, sludge conditioning plays a very important role in addition to selecting the right dewatering unit. Not only is it important to select the right flocculant and to ensure optimum dosing (concentration, quantity, dosing point), but also to mix the flocculant properly into the sludge to achieve good floc formation, which then leads to an optimum dewatering result. HUBER offers various machines for sludge dewatering and, based on decades of experience and thousands of installations, can always design the best suitable solution for different throughputs and different sludge qualities. The overall solution of a modern sludge dewatering system also includes the transport of the dewatered sludge to further sludge treatment or to intermediate storage (container or bunker). Here, too, HUBER has extensive expertise and can provide tailor-made solutions for the transport of sludge .[...]

[...]Great Britain Three recent installations are now helping poultry slaughterhouses to reduce their sludge disposal costs and remove their reliance on tankering sludge off site. Background With ever increasing sludge disposal costs and tightened restrictions on spreading sludge on land (particularly over the summer months), HUBER were approached to provide dewatering of the sludge on three poultry slaughterhouses. The sites had identified the potential for savings and wanted to evaluate treatment options. Since the three sites operate similar processes, a single trial was conducted to evaluate the screw press performance. HUBER were able to offer an on-site trial using a containerised HUBER Screw Press S-PRESS unit, which was operated by site over the course of a month. This allowed the sites to confidently assess not only the performance of the machine but the ease of operation and minimal amount of time required from site operatives. Following the trial, the client was issued with a detailed report, so that they could evaluate both capital and operating costs. Solution Although the Screw Press and polymer batching plant supplied to each site was the same, each site had slightly different considerations for installation of the Screw Press on their site, including: Area available and layout of existing treatment plant, including location of sludge holding tank Size of skip/trailer to be used for cake disposalExisting buildings/structures HUBER have experience of operating Screw Presses mounted in containers, inside buildings, and on top of gantries with cake either dropping into a skip directly or using a screw conveyor to transport & distribute the cake across a long trailer. The customers were able to draw upon this knowledge to ensure that each installation was as practical as possible and cost effective, while being the right decision for that particular site. HUBER provided the full equipment scope for the client to incorporate into their installation, including: HUBER Screw Press S-PRESS I sludge dewatering screw press Automated polymer batching plant to flocculate the sludge Feed sludge and chemical dosing pumps In-line polymer injection and sludge mixing to mix sludge and polymer within an enclosed, small footprint Pre-programmed control panel to automate operation of the plant As a result of the three installations, the clients are have been able to significantly reduce their sludge disposal costs. In addition, vehicle movements are minimised, since the water removed from the sludge now goes to drain (after being processed by the on-site ETPs) rather than being transported away by costly road tankers. Key figures: Sludge @ 3.3% DS Dewatered Cake @ 23% DS Polymer usage 10 kg/tDS For more information please contact +44 1249765000, email rotamat@huber.co.uk[...]