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W. L. Gore & Associates, Inc
	GORE Surveys Sampling Air, Soil, and Water GORE Surveys for Site Assessment are used for accurate site assessments, vapor intrusion investigations, ground and surface water sampling, conceptual site model development, and long-term monitoring. GOREÂŽ Filtration Products Proven to optimize filtration products GOREÂŽ Filtration Products provide optimum performance for the chemicals, metals, minerals, and energy industries in the form of low pressure drop, near zero emissions, and consistent flow rates. We focus on delivering optimum performance through system evaluation, troubleshooting, specific product design, proper application, installation consultation/management, and periodic lab evaluation. Microfiltration Media The benefits of GORE MicroFiltration Media make them your ideal choice for a broad range of liquid and air filtration applications
WELtec BioPower GmbH
	Biogas Plants Made from Stainless Steel Biogas plants by WELtec BioPower® are made from stainless steel. The biogas forming in the fermenter contains amounts of hydrogen sulfide and ammonia. These aggressive chemicals attack unprotected components. That’s why we use: Stainless steel V2A (1.4301/AISI 304) in the area of the fluid level Stainless steel V4A (1.4571/AISI 316Ti) in the area of gas That ensures the quality and guarantees a long service life of the entire system. Even after 20 years of operation, stainless steel still maintains a very high value. Control system Several individual factors determine the optimal operation of a biogas plant. To ensure that these factors are optimally matched with each other WELtec BioPower® has equipped the plants with a central control system that controls and manages all processes. Smaller plants require a relatively simple system that will reliably control all major factors. More comprehensive plant types require normally a more sophisticated control system. We therefore individually match our control systems depending on the individual requirements of the required plant. Denitrification-Nitrification Denitrification is a process where the nitrogen bonded in the nitrate is transformed into molecular nitrogen by bacteria. As a result, the nitrogen is no longer usable as a source of nutrients for plants. It has no impact anymore as a fertilizer and thus is no longer environmentally relevant. Denitrification takes place in a sequential batch reactor (SBR). The SBR is a specially designed stainless steel vessel that is mounted on a concrete foundation. Oxygen is supplied by venturi nozzles which take air in via piping above the filling level and blow it in at ground level of the SBR. Adjustable submersible motor-driven agitators ensure optimum mixing of the substrate and activated sludge during the reaction phases. The submersible motor-driven agitators can be adjusted in terms of direction and height by using a cable pull in order to ensure the optimum mixing. Internal heating pipes, which provide the right temperature in the SBR, are located in the bottom part of the tank. These may be utilised for heating and cooling. Substrate is supplied and sludge is removed via the piping. In the middle of the SBR there is a frame, which accommodates the feed hopper for clear water and the nine nozzles for suppressing the formation of foam. The formation of foam is suppressed by pumping the contents of the SBR through the nozzles and spraying onto the surface. A measuring section is installed outside of the SBR for monitoring such parameters as temperature, oxygen content and pH value. Fermenter on the inside A reliable system is the result of optimally and finely tuned technologies: The substances used have to be comminuted, mixed together and heated, the gas obtained is further processed and harnessed efficiently. That’s why WELtec BioPower only utilises plant components that have proven themselves in use and develops the majority of the technologies independently. Long arm agitator The task of a long arm agitator is to mix the substrate evenly and carefully. At approx. 40 rpm it creates a fl ow and motion in the vessel and ensures that the gas creating bacteria will have continuous and optimal conditions. The electric excitation is done by a frequency inverter, which depending on the fed subs trate can be adjusted stepless and adequately in accordance with the individual mixing requirements. The motor and bearing support is located outside the fermenter and is guided at an angle trough a gas-tight wall opening into the vessel. Perfect Solutions for Waste and Disposal Engineering Biogas plants by WELtec are not only renewable resource plants: In the area of waste and disposal engineering, WELtec BioPower realises optimum solutions in order to dispose of substrates that are subject to the EC hygiene regulations. For instance, a biogas plant by WELtec BioPower offers individual sanitation solutions that can be adapted to the respective requirements and which satisfy the statutory guidelines. Measurement Technology Offers Security The sanitation is necessary for substrates which should not be disposed of agriculturally without treatment in accordance with EC hygiene regulations. The sanitation process begins if the necessary minimum temperature of 70° is attained with the closure of the sanitation tank. Only after the prescribed time expires does the drain valve open and the pasteurised substrate is transported to the sanitized area via separate pumps. The entire process is documented by the control system such that there are verifiable values regarding temperature and duration of sanitation available at any time. To this end, all measured values concerning the temperature profile and the period of sanitation are outputted and stored in a database. The temperature profile is recorded in a set frequency and may be presented as a graph at any time. By documenting the minimum and maximum values, it is possible to ensure that the preset temperature is not undershoot or surpassed. Submersible agitators In addition to the long arm agitators we also use submersible agitators. These agitators ensure a fast and targeted mixing of fl oating and sedimenting substrates and are used to maintain a minimum crust formation in the digester, and to break up larger problematic crust formations in the
Wessel Umwelttechnik GmbH
	Absorber We supply special washers for the absorptive separation of acids, bases and other pollutants. These washers have been in use successfully for years in many industrial branches. The washers, including exhaust air infeed, dosing of neutralization medium and blow-down cycles, are operated fully automated. The range of pollutants which are separated by the use of our absorbers with effectiveness levels of > 95% include HCl, HF, HNO3, NOx, Cl2, NH3, SO2 and others. Further inorganic and organic pollutants, such as formaldehyde, methanol, ethanol and ketone can also be separated by wet absorption. Our washers offer the following important advantages: Proven technology with an extremely high degree of efficiency to guarantee compliance with TA-Luft values Low operating costs (among other factors, due to low pressure loss)) High level of operational reliability and system availability due to continual monitoring of system parameters) Compact, space saving modular design Can be retrofitted in any existing exhaust air purification system to increase performance We supply the following types of absorbers: DCS-(Direct-Chemical-Sorption) washers DS- (Direct-Sorption) washers Adsorber Adsorbers are characterized by a wide range of process technology possibilities for the separation of various different pollutant components. The adsorbents we use have a large inner surface area, offering a lot of room for undesirable air components. We preferably use adsorbers in case of a discontinual mode of operation of systems emitting harmful substances. Beyond the sole use of adsorbers, we have developed system concepts in which, for example, our high performance biofilters are combined intelligently with adsorbers, in order to be able to buffer peak loads of pollutants (solvents) when they occur. In times with lower emissions the adsorber is regenerated by cleaning the exhaust air by means of the high performance biofilter. Thus, regeneration of the adsorber by other means is not necessary Biofilter Our BIOKAT filter represents proven biofilter technology with very high levels of efficiency. Adapted micro organisms and biocatalyzers are used for the reduction of odour causing substances as well as the separation of harmful substances. The BIOKAT filter is designed as a closed system (container or hall). Exhaust air with intensive odours or burdened with pollutants enters the BIOKAT filter from above. The biofilter material is applied on a shelf, through which the exhaust air flows downward, in the so-called DOWN-FLOW principle. In long dwell times, harmful substance and intensive odour causing components are separated from the exhaust air and converted to CO2 an H2O by adapted micro organisms. Container design version: The modular design requires only a small amount floor space. The system can be adapted step-by-step to changing input parameters. Hall design version: BIOKAT filter halls are used in case of volume flows from approx. 60,000 m3/h. Filter halls are visually integrated in the overall complex. Biowashers Our biowasher systems CSC (Closed System Column) and BTC (Biological Thermophile Column) combine two proven processes for exhaust gas and exhaust air purification. On the one hand, the absorption of harmful and odour causing substances takes place in the substance exchange zone of the washer column and, on the other hand, the biological degradation with micro-organisms specially adapted to the respective application case. An effective biofilm with excellent absorption properties and degradation capabilities forms on the Wessel biosorb packing material, which is characterized by a large specific surface area at low pressure losses. The absorbed harmful and odour causing substances, through their natural metabolism, are completely converted to CO2 and H2O in the biofilm on the packings as well as by suspended micro organisms contained in the washing fluid of the integrated reaction basin. In case of very high concentrations of pollutants, a biological water treatment module can be sued to support the decomposition processes. Our biowashers are characterized by their particular environmental friendliness. Dry dedusting systems We offer a wide range of fabric filters for the separation of dust in application in various branches. The selection of the cleaning technology to be used is done under consideration of requirements on the respective processes and methods. Our fabric filters are designed for rough and changing operating conditions and are available from smallest volume flows to approx. 250,000 m³/h. Systems are controlled by modern electronic control units. We pay particular attention to explosion protection. The requirements of the ATEX Guidelines are consequently implemented in our dedusting systems. Dedusting methods Dedusting by compressed air Dedusting by beating and scavenging air Designs Tube and pocket filters Round filters Cartridge and cassette filters Special materials (e.g. 1.4301, 1.4541, etc.) other special designs depending on application case Filter media Fabrics, fleeces and felts made from various fibre materials such as polyester, polypropylene, PTFE, cotton, etc. The fibre materials are pre-treated depending on the application (antistatic, oleophobic, hydrophobic, etc.). Explosion protection Certified rupture disks Design of the filter to withstand reduced explosion pressure Systems for decoupling, certified flap valves, deflection chutes Monitoring of the pure gas side with measuring equipment RTO Regenerative Thermal Oxidation systems, by Wessel, have established themselves successfully for providing solutions to various problems in the industrial and municipal field. These include the following applications: Separation of solvents in the area of medium to high concentrations for industrial application cases, and Overall carbon separation, in particular methane separation, for the waste management field. The process is based on the fact that even comparatively small amounts of volatile pollutants can be incinerated residue-free under suitable conditions. The technology is characterized by high preheating of the exhaust gas within the reciprocal flow beds, as a rule, ceramic honeycomb elements, of the regenerative heat exchanger. Due to the high efficiency of the heat exchanger of > 95%, as well as the relatively high oxidation temperature of > 800°C, comparatively low emissions of NOx and CO are released. Process related details, such as the design of flap systems, special air distribution systems and selected honeycomb elements assure the secure compliance with legal limiting value. Water treatment The closed production water circuit with integrated process water generation represents the latest ecological technology for industrial facilities. By combining innovative biological water treatment processes with modern membrane technology we have succeeded in utilizing achievable economical and ecological advantages to the highest possible level. Contaminated surface water or rain water can also be treated and recycled in the same way as other waste water. The fresh water requirement of our systems is reduced to a fraction of the otherwise usual consumption. The processing techniques for the purification of water and exhaust gases are coordinated to each other. Due to the exploitation of existing synergy potentials, there are no critical interfaces. Investment and operating costs are minimized Wet separators For various application cases we offer systems for wet separation of dust and pollutants. DS (Direct Sorption) washer system Countercurrent washer for the purification of slightly polluted exhaust air. The DS washer system consists of the following components: Conditioning Sprinkling zone with packings Treatment of washing fluid Droplet separator Integrated collecting basin with washer pumps Agglo Control System High performance washer for the purification of heavily polluted exhaust gases. The Agglo Control System consists of the following components: Pre-washer stage High performance washer Treatment of washing fluid Droplet separator [Integrated collecting basin with washer pumps
Westfalia Separator Food Tec GmbH
	Chamber bowl centrifuges Continuous clarification of suspensions, recovery of valuable solids Application: Chemical and pharmaceutical industries, here especially for the recovery of proteins from human blood plasma in plasma fractionation plants and the recovery of bacteria Clarifiers BKA and BKB designed for low-temperature applications, achieved by triple cooling: direct bowl cooler, frame upper section cooler and a hood cooler make possible the exact adjustment of the product temperature with only minimum tolerance Separators Separators in a neutralization line for edible oils. Skimming separators Skimming separators for a capacity of 60mÂł/h.
Westfalia Separator Umwelttechnik GmbH
	Decanter UCD 205 Dewatering of municipal and industrial waste water sludge The Westfalia Separator UCD 205 decanter centrifuge is a continuously operating horizontal solid wall bowl centrifuge for maximum dewatering requirements of municipal and industrial waste water sludge. The frame is of open design with either gravity or pressure discharge of the clarified phase.
Wieland Apparatebau GmbH & Co. KG
	Air supply systems Air supply systems, Belt filters, Chain conveyors, Chamber furnaces, Chromatizing systems, Circular conveyors Dryers Continuous dryers Drying plants (Dryers) Drying plants (Dryers) furnaces Chamber furnaces
Wieland Lufttechnik GmbH & Co. KG
	BlowVac BlowVac, the top class among vacuum loaders, consequent, versatile, powerful. 42 kW to 300 kW, driven by the truck engine or by separate Diesel engine. BlowVac vacuum loaders are high end units for applications in the bulk material industry. The BlowVac design is oriented toward customer benefit, suction performance and filter technology. Depending on the version, the suction material can be discharged into BigBags, into containers at a discharge height of up to 2 m or at a dumping site. Alternatively, the suction material can be pressure discharged with the blowing device into silos or onto roofs. Click to entlarge The almost unlimited suction power allows for suction rates of up to 60 t/h. Flexible hoses of a total length of 90 m can be loaded onto the truck at a normal loading height. Versions with explosion protection according to Atex and for ADR material are available. BlowVac, the vacuum loader which can extract anything - more is not possible Industrial vacuum cleaners Unmatched in terms of quality and function. Industrial vacuum cleaners from Wieland Lufttechnik set the standard in the industry. Highest suction and filter performance, achieved by continuous improvement in terms of design and product quality. Mobile suction units, vacuum loaders Wieland Lufttechnik is the pioneer and technological leader concerning the development of mobile suction units. The units are mounted onto trucks or trailers and are the optimum work tool for the bulk material industries. MS-30 suction unit MS-30, the compact suction unit which is integrated into production machinery. 3 kW driving power, three phase. Vacuum extraction of limited amounts of suction material. Designed for continuous operation. Different types of filter systems for swarf, dust and liquids. MS-30, the perfect unit in its class. Stationary vacuum systems and dust extraction units Stationary vacuum units from Wieland Lufttechnik collect the suction material centrally and can discharge into containers of onto conveying equipment. Standard components are combined and tailored into to meet customer requirements. VacTrailer S-4, the compact all-round unit 42 kW Diesel engine or 37 kW electric motor. The S-4 which is produced in series, is a very compact mobile suction unit. Its convincing suction performance makes it possible to convey suction material at considerable conveying rates over long distances with diameter 80 or 100 flexible hoses. The high-tech filter system with three serial separation steps and pneumatic AirShockÂŽ filter cleaning device guarantees a continuously high suction power even for difficult types of dust. The collection container is lifted hydraulically in its working position and discharges the suction material into BigBags or open containers. Special versions with explosion protection according to Atex and with nitrogen cooler for catalyst handling are available. S-4, the compact unit with extremely high suction power manufactured in series production quality.
WILHELMI GmbH
	Rubber buffers Rubber buffers Rubber metal connections Rubber metal connections Rubber metal parts Rubber metal parts
Willibald J GmbH
	drum screens mobile and stationary drum screens Minimax 2000 - Shredder Universal The optimal solution for all Biomass projects Shredding and screening (optional) in one passage Accurate and exact defined fractions Optimal adaptability of power to the loading Concurrent material for burning and composting High throughput rate shredder universal ecomax shredder universal TBU Series // Mobile compost windrow turners Thanks to the extensive experience of our development technicians and engineers, Willibald machines have transformed compost windrow turning into quick and clean precision work. Our machines reduce energy consumption, increase turning speed and precision, support compost maturation and improve compost quality. The precise turning of horizontal layers ensures that the outer and inner windrow layers are optimally mixed to promote the compost maturation process and produce a top-quality and fully homogeneous end product.
WILO AG
	Wilo-ASP Low pressure centrifugal pump with axially split pump housing mounted on a base plate Pumping heating water according to VDI 2035, water-glycol mixtures, cooling, cold and process water Applications in municipal water supply, irrigation, building service, general industry, power stations, etc. Wilo-Comfort CO Pressure boosting system with 2 to 6 in parallel, self-priming stainless steel high pressure centrifugal pumps