Used Straw for sale (46)

Condition: like new (used), Air conditioning, heating, year of manufacture 2023, 2020 operating hours, condition: as new. Adjustable fork for straw, 3 hydraulic lines on quick coupler, tyres as new (550/45-22.5). Kdedpfx Aqsx Urdwjqjr

Condition: new, Year of construction: 2024, The SCHORR electric dumper is ideal for transporting heavy loads and bulk materials. With a load capacity of 500 kg, this wheelbarrow with electric motor is a real powerhouse that can also handle larger loads effortlessly and, above all, quietly. Thanks to the hydraulic tipping skip with a large tipping radius, you can unload your load easily, quickly and completely. Our electric dumper is powered by a brushless 48V electric motor with an output of 1000 watts. This motor is not only particularly powerful, but also extremely durable and low-maintenance. The motor is also particularly quiet, making it ideal for use in stables, for example. The side extension for the minidumper increases the loading volume of the dumper by more than 60%. The side extension is ideal for loose, light goods such as straw, hay, light rubble, etc. Please note that the permissible payload of 500 kg remains unchanged. The SCHORR electric motorized wheelbarrow offers an impressive battery life of 8 to 10 hours, so you can easily get through the day or shift. The charging time is approx. 7 hours for 100%. The battery dumper is easily charged via the charger included in the scope of delivery at a normal 230V socket. The compact size of the electric dumper in combination with the swivel rear wheels makes it particularly flexible and maneuverable. It is therefore ideal for use on tight construction sites or in narrow aisles (e.g. in horse stables). SCHORR RR500DEHRAS electric dumper - Discover the advantages: Load capacity up to 500 kg Increased loading volume Hydraulic tipping drive (tipping without effort) Very easy to operate without effort Powerful 1000 watt 48V electric motor Very low-noise & low-vibration operation Compact size - ideal for tight working areas Technical specifications Load capacity: 500 kg Weight: 209 kg Tilt drive: Hydraulic Motor: 48V electric motor 1000 Watt 4 lead acid batteries (á 12V, 32Ah) Battery life: 8 - 10 hours Charging time: 6 - 7 hours to 100% charge Speed: Forward 1st gear: max. 3.3 km/h Forward 2nd gear: max. 4.2km/h Forward 3rd gear: max. 5.0km/h Reverse: max. 1.5km/h Kedpfsufx Utex Aqqjdr Overall dimensions: 173cm x 77 cm x 103 cm Tank dimensions: 1061mm x 674mm x 670mm Container water capacity: 150l Load volume (depending on filling) up to 500l The SCHORR electric dumper is ideal for transporting heavy loads and solid materials (e.g. stones, sacks, pallets, etc.). With a load capacity of 500 kg, this wheelbarrow with electric motor is a real powerhouse that can also handle larger loads effortlessly and, above all, quietly. Thanks to the hydraulic tipping trough with a large tipping radius, you can unload your load easily, quickly and completely. Would you prefer to finance or lease the device? No problem! We also offer you attractive options for this. Simply contact us and we will advise you on the various options. We look forward to hearing from you! We will be happy to answer any questions you may have about our electric motorized wheelbarrows. You can reach our competent team by phone or email. We look forward to hearing from you and being able to help you with advice.

Condition: used, Year of construction: 1999, Overview This filling line for carton packaging from 1999 consists of a SIG Combiblock filler, accumulation system, straw applicator, shrink tunnel, and carton packer. The line currently fills juices into carton packs. The machines will be in operation until the end of June and can be viewed in person at any time. One will be free in June, one in October Technical details Output: 12,000 bottles per hour Volume: 200ml Packaging: cardboard, CB7 (feeder) Format shrink tunnel: 2x5 Carton packer format: 30 pack / 60 pack Machine list Filler | SIG | Combibloc CFA 712 | 1999 | Operating hours: 112.650 h Vertical accumulation system | Meurer | CM/ VSP 1200 | 1999 Straw applicator | Geyssel Cologne | 432 | 1999 Shrink tunnel | Meurer | CM/ BK 40-T80 | 1999 Carton packer | Meurer | CMT/ TP | 1999 Shrink tunnel | Meurer | CM/ BK 40-T80 | 1999 Carton packer | Meurer | CMT/ TP | 1999 Ksdjr It Stspfx Aqqedr

Condition: used, Year of construction: 1999, Overview This filling line for carton packaging from 1999 consists of a SIG Combiblock filler, accumulation system, straw applicator, shrink tunnel, and carton packer. The line currently fills juices into carton packs. The machines will be in operation until the end of June and can be viewed in person at any time. Technical details Output: 12,000 bottles per hour Volume: 200ml Packaging: cardboard, CB7 (feeder) Format shrink tunnel: 2x5 Carton packer format: 30 pack / 60 pack Machine list Filler | SIG | Combibloc CFA 712 | 1999 | Operating hours: 112.650 h Vertical accumulation system | Meurer | CM/ VSP 1200 | 1999 Straw applicator | Geyssel Cologne | 432 | 1999 Shrink tunnel | Meurer | CM/ BK 40-T80 | 1999 Carton packer | Meurer | CMT/ TP | 1999 Kdjder It Swspfx Aqqor

Condition: used, Year of construction: 2007, operating hours: 2,000 h, power: 283 kW (384.77 HP), Equipment: air conditioning, cabin, * Engine manufacturer: John Deere Equipment: Kdodpfx Aeil Hadsqqsr Air conditioning, straw chopper, cutterbar carriage, hillside compensation, onboard computer/monitor, throughput control, yield measurement, reel horizontal adjustment, hydrostatic drive, reversing device, cutterbar, loss measurement Shaker with JD625R cutterbar with a working width of 7.60m, transport trailer, and rape seed table ENGINE IS MAKING NOISE.

Condition: new, Year of construction: 2026, We offer: Pellet machines from the WALW-Solutions brand, characterized by unique quality, honest workmanship, and a fair price. Honest Workmanship: Kdsdpfxjlt Ugto Aqqsr We produce our systems directly in Poland. Only components such as gearboxes and motors are purchased from reputable manufacturers. Everything else is designed and built in-house, which allows us to meet every requirement. Fair Price: We produce in Poland, and we stand by that. Other competitors, who advertise their products as "Made in Germany," only assemble them in Germany and typically source components from Lithuania. We enable you to benefit from our low production costs, resulting in our offer price being typically 40% lower than that of our competitors. These machines for pellet production are entirely new to the market in this price/performance segment and are unique in Europe! Machines from WALW-Solutions are available exclusively through us! From systems for processing in-house sawdust from firewood production or from your carpentry shop, to the professional production of pellets on an industrial scale from wood chips, straw, miscanthus, and more – and also for the production of hay or straw bales, we can provide you with the right solution! Our systems have a capacity of 150 kg/hour up to 5 tons/hour and include all the necessary components to implement a fully automated system. For all raw materials, we find the appropriate solution or methods to integrate automation into existing systems. All machines and controls are equipped with components from Siemens, ABB, Schneider Electric, etc. Please note that net purchase is possible if you have a valid VAT ID! We look forward to your inquiry! If you are interested, please contact me directly by mobile at:

Condition: used, Year of construction: 2014, Lighting/warning signs, / Straw inserter / _____ / Strip body, / Fixpack packer system integrated tube bar roller, / / Hydraulic stone protection, / Straw guide plates, / Serrated disc coulter, / Systems 50%, / 340/55-16 support transport wheel / steps Kodpsqrrycefx Aqqsdr

Condition: used, Year of construction: 2015, First registration: / 01.01.2015 / _____ / machine type: SM-P-1-10ZK / incl. straw blower / hopper volume: 1000m³ / feed discharge on both sides / hydraulic support leg / mixing system: vertical mixer / scales defective! / Kdodpfoqrryrsx Aqqjr

Condition: used, Year of construction: 2008, Support axle cat. 3 Support wheel and transport wheel 26x12 Model EG 100/300/77RH / Hydraulic cutting width adjustment Strip body no. 30 Maize inserter / Straw insertion plates Disc coulter Overload protection with additional spring leaves / Ksdpfx Aetia Dboqqsdr

Condition: used, Year of construction: 2024, Straw harrow with disc coulter, adjustable Lighting system Weight 2,150 kg / Kdodpfotya Imsx Aqqer

Condition: used, Year of construction: 2019, Action package 1 Walterscheid wide-angle articulated top hitch / electro-hydraulic operation Hopper inner ring (straw ring) Reduction gearbox / 1000 rpm with el. hydr. operation Umscha pneumatically braked axle 20 m3 / i-FeedGood L with 4 weighing rods Kodpfxsttv Imj Aqqedr

Condition: ready for operation (used), functionality: fully functional, suction capacity: 20,000 m³/h, production capacity: 1,300 unit/h, No minimum price – guaranteed sale to the highest bidder! The hammer mill (year of manufacture 2021) has only approximately 2 operating hours! The system is suitable for straw, hay, alfalfa, compost, wood, and other agricultural raw materials! TECHNICAL DETAILS Capacity (material-dependent) max.: 1,300 kg/h MACHINE DETAILS Hammer mill power: 75 kW Pellet press: 75 kW, without control unit Bale shredder: 35 kW, including control unit Dust filter capacity: 20,000 m³/h, including control unit Operating hours Entire line: approx. 1,500 h Hammer mill: approx. 2 h EQUIPMENT Pellet press Conveyor belt Elevator Pellet cooler with screen Buffer tank with discharge 2 cyclones with rotary valve airlock Ksdpfx Aezgf A Ueqqsdr Fan for cooler extraction New die Various used spare parts 10 m feed table for the bale shredder Bale shredder, including control unit Hammer mill, including control unit Centrifugal separator Big bag station for dust filter Dust separation technology: EU-ATEX Directive 2014/34 Positive dust explosion assessment from 2023 Note: The line has already been dismantled and is ready for loading.

Condition: used, Year of construction: 2006, operating hours: 18,625 h, machine/vehicle number: LC598, Used aseptic line for tretra pack fino 1 L - 3600 PPHTechnical Specifications & Performance DataThis complete Tetra Fino Aseptic line is an integrated aseptic packaging solution engineered by Tetra Pak for liquid food applications. The core filling machine was manufactured in 2006 and is complemented by downstream packaging equipment. Designed for industrial packaging and beverage production, it provides reliable second hand performance with hygienic processing and efficient material handling.Production speed: up to 3,600 packages/hourContainer type: Carton-based aseptic packages (Tetra Fino Aseptic family)Supported volumes: 1.0LPrimary product currently run: MilkMain filler year: 2006Additional module: SOCO System unit, year 2014Accessories: Trolley for packing with roll holder, ABC valve, 1 m mesh conveyorAdvanced Automation & Control SystemsThe line incorporates an industrial control panel for central operation of filling and downstream handling. The aseptic filler integrates automatic process sequences for sterilization, filling, and sealing under controlled conditions. Operator safety interlocks and machine guarding support safe operation, while standardized HMI navigation streamlines recipe selection and format changes. The architecture is designed for fast restarts and consistent uptime in high-demand environments.Production Line Integration CapabilitiesThis used bottling line is configured for inline operation, linking the aseptic filler with conveyors and a SOCO System packaging module. It supports integration with typical ancillary devices such as product dispensers, cap or straw applicators, and end-of-line packaging machinery. Format changeovers accommodate multiple carton volumes within the 0.2L to 1.0L range, enabling multi-product flexibility for milk and juice production. The conveyor layout ensures smooth product transfers and balanced accumulation between stations.Machine Condition & Maintenance HistoryThe equipment is reported in production with overall good condition. Continuous operation on milk indicates stable performance and consistent hygiene compliance. The 2006 filler and 2014 downstream module are maintained to sustain aseptic integrity and packaging quality, making this second hand industrial packaging line a strong candidate for rapid redeployment.Operational Performance & VersatilityOptimized for liquid food, the line supports aseptic packaging of products such as milk and juices in pillow-style Tetra Fino Aseptic formats. Key benefits include extended ambient shelf life without preservatives, high barrier multi-layer materials, and hermetic sealing. The layout offers reliable filling accuracy, gentle product handling, and quality consistency suitable for beverage production requiring long shelf life and stable logistics.Installation Requirements & Site PreparationThe system is designed for standard industrial facility layouts with room for filler, conveyors, and a compact end-of-line module. Typical utilities include electrical power, compressed air, and process water as required by aseptic operations. A clean, controlled environme... Kdjdpjyh E Apjfx Aqqor

Condition: refurbished (used), Year of construction: 2014, functionality: fully functional, machine/vehicle number: 355, total width: 1,100 mm, total height: 1,000 mm, total length: 2,800 mm, briquette diameter: 60 mm, overall weight: 2,400 kg, warranty duration: 3 months, control cabinet width: 1,000 mm, control cabinet length: 1,000 mm, control cabinet height: 300 mm, type of input current: three-phase, The subject of the auction is a BT-60 briquetting press designed for processing sawdust, straw, and other materials. Kdjdpfxjv Scxzj Aqqer - Briquette output: 500 to 750 kg/h, briquette diameter: 60 mm. Other dimensions (depending on the production set used) - Briquette diameters: 36-40 mm, 46-50 mm, 56-60 mm - Briquette shapes: Cube 48x48 - 55x55 - 59x59 mm. - Warranty: 3 months from the manufacturer. Wektor is a manufacturer of equipment for briquette and pellet production. We have been manufacturing briquetting machines for over 30 years.

Year of construction: 2025, operating hours: 2 h, condition: new, functionality: fully functional, Pelletizing plant for a wide range of materials such as wood, miscanthus, agricultural by-products and waste (hay, straw, corn stover, etc.), animal feed, and more. This is a complete compact system, built on a base frame, consisting of the following components: - Raw material storage hopper (4 m³) with agitator - Hammer mill, 22 kW drive power, for size reduction of raw materials (e.g., wood chips) - Inclined mixer for raw material, including level sensors and fully automatic moisture dosing - Dosing hopper for pelletizing aids (e.g., corn starch) - Dosing screw for optimal material feed to the press (speed-controlled) - Pellet press with 30 kW drive power, featuring a horizontal ring die, discharge chute, temperature monitoring, overload protection, and more - Conveyor belt for pellet discharge, drop height approx. 2.5 m - Drum screen for dedusting and cooling of pellets The entire plant is centrally operated via Siemens PLC with touch display! All parameters are continuously monitored, and the plant will automatically shut down in case of malfunction! The system is designed and prepared for operation with a second press! Kdodpfx Aoxlif Reqqsr Price excl. VAT! !!!!! Attention!! We are continuously looking for sales and service partners (worldwide) !!!!!

Condition: new, Year of construction: 2025, type of input current: AC, power: 5.5 kW (7.48 HP), input voltage: 400 V, Pelleting plant for a wide variety of materials such as wood, miscanthus, agricultural by-products and waste products (hay, straw, maize straw ....) Animal feed ..... This is a complete system (compact system), which is built on a base frame and consists of the following components: Storage container for raw material 1.5 m³, incl. agitator Inclined mixer for raw material incl. level sensors and fully automatic moisture metering Dosing screw for optimum material feed to the press (speed-controlled) Kodpsud Nx Hsfx Aqqedr Press 5.5 kW, with horizontal round die, discharge chute with dust separation, temperature monitoring Conveyor belt for pellet removal, discharge height approx. 2.0 m The entire system is operated centrally using a Siemens PLC via touch display! In addition, all parameters are permanently monitored so that the system is shut down if a problem occurs! Price excl. VAT! The price includes operator and service training (in A-4352 Klam)! Attention, some of the pictures do not correspond to the actual system ( are example pictures ) !!!!! Attention!!! we are constantly looking for sales and service partners (worldwide) !!!!!

Condition: good (used), Year of construction: 2012, functionality: fully functional, BRIQUETTING and PELLETING technology: Machine type: BS70 Briquetting equipment The BS70 type BRIQUETTING PRESS equipment can be versatilely used for the processing of naturally renewable raw materials for the production of new, processed commercial goods. The equipment is used for processing and pressing materials such as straw, legumes, hay, paper, wood and other natural materials and their mixtures. The manufacturer designs the equipment according to the product to be processed. The moisture content of the raw materials to be processed is max. 10-12% and must not contain foreign matter (metal, gravel, sand, etc.). Pressing takes place without the addition of any additives or binders, only as a result of pressing, during which (depending on the base material) a density of over 1 kg/dm3 can be achieved. The resulting end product is automatically placed in the storage bags without manual handling, suitable for continuous operation. This can be ensured with 4 briquette presses (briquette diameter 70 mm) and 1 pelletizing machine (pellet diameter 6 mm), which can be installed in a 15x20x6.3 meter hall. The equipment is suitable for 16 hours of work per day, with 2 x 7 hours of continuous operation within that. The system consists of the following units: KSD900 Straw Grinder (2 Pcs): AVSZ70 Automatic control for material preparation (2 Pcs): Screw conveyors (3Pcs): Trough screw conveyor (2Pcs): CSV70 Pipeline (2Pcs): PFK70 Dust selection and dust filter (1 Pc): PF70 Dust filter (1Pc): ST70 Silo tank (6 m³) (2 Pcs): BS70 Briquette press (4 Pcs): The press piston presses the material into a conical tube, which creates a continuous rod with a diameter of 70 mm. The pressure is adjustable and the feed of the conveyor screw can be controlled in the same way. The exchangeability of the press tools enables the control of the quality and density of the manufactured briquettes. As an option for the various raw materials, we deliver various press scopes, which undergo testing before delivery, if the customer provides a raw material sample. By changing the press tool, the machine is also suitable for the production of litter and loose briquetting of feed, or even for making a mixture as an option. The material is pressed without binders or chemical additives. Depending on the density of the processed material, we obtain different products, the specific gravity of which can exceed 1 kg/dm3. The performance of the pelletizing and briquetting system is 1.5 tons/hour based on wheat straw. The performance of the production and the quality of the product are determined by the adjustable speed of the screw and the adjustable press pressure depending on the quality of the raw material. Electricity Demand 37+10 kW. Press pipe (4Pcs): Ribbed conveyor belt (1Pc) HF70 Cooling-heating operating temperature controller (4Pc): AVP70 Control (4Pcs): Kdjdpfsubb Ubox Aqqer PELLETING technology for biomass: The manufactured finished product is a 6 mm pellet, 10-40 mm long. Raw material to be processed: hay, straws. Moisture content: max. 10%. To produce the pellets, the technology incl.:pre-shredding (drying), grinding, dosing unit ,moistening, pelletizing equipment, cooling system, screen, filter and a pellet bagger (manual) The type of the machine: MiniPell (1Pc) machine performance: 50-120 kg/hour press engine: 10 kW dosing unit: 0,37 kW weight: 750 kg Grinder (1Pc): Control grid and Manual bagger (1Pc)

Condition: new, Year of construction: 2024, he shredder is designed for shredding straw or hay pressed in rolls. In certain cases, after obtaining the manufacturer’s permit or testing, it is possible to shred square or rectangular pressed bundles. Required fraction of the shredded product at the output is possible after selecting a sieve of a certain throughput from the range offered by the manufacturer. In case product fractions of a smaller size are needed, insert a finer sieve, and vice versa. Technical Data of Shredder Capacity: 500 – 1200 kg/h Shredding fraction: 10 – 35 mm Humidity of raw material: Kdodpfetnfuzex Aqqsr

Condition: excellent (used), COMPLETE TETRA PAK LINE MODEL TBA9 200ml SLIM FILLER TBA9/200S, V120, YOM 1993, 52.000 RUNNING HOURS TSA 36 STRAW APPLICATOR U-form Kjdpfx Aqovvn Ayjqsdr TETRA PACKER TCBP 50-030 WRAP AROUND TETRA MULTISHRINK TMS 63-050V, packing 2X3 CONVEYORS SYSTEM THE LINE IS STILL IN PRODUCTION

Condition: new, functionality: fully functional, Year of construction: 2026, Product overviews of Waste Industrial Timber Wood Pallet Double Shaft Shredder Shredders can generally be used to shred hard-to-break plastics, rubber, large tires, large nylon materials, large pieces of fishing nets, fibers, paper, wood, electrical devices, cables, PET bottles, cardboard, wood, plastic barrels, etc. Solid objects. The main function of the equipment is to squeeze the bulk materials and large-diameter drum metal materials that are not convenient for transportation through the shear of the shredder, and shred them into sheets that meet the requirements. The main structure of the double-shaft shredder is a feed hopper, a knife roller, a driving device, a bearing, a hydraulic system, and an electric control box system. Working principle: All kinds of waste materials enter the shredding chamber through the feeding hopper. The double-knife rollers do relative rotation to shred and cut the materials, and then the materials are discharged from the shredder to achieve the shredding of large pieces of materials. Applicable materials and fields Double shaft shredder is one of ethential equipment for waste recycling in following fields and materials: +Bulky Waste: Sofa,Mattress,Chair, Funiture,Windows,etc +Industrial Waste: Textiles,Leather,Rubbers, Leathers ,General industrial waste,etc +Hazardous Solid waste: Medical waste,Paint sludge,Radioactive waste,Hazardous waste oil drum,Jumbo bag,etc +Paper waste: Carton,Cardboard,Book,Newspaper,Document,Brochure,Packaging paper,etc +Garden waste: Branch, Wood pallet, Trunks, Boards,etc +Domestic waste +Biomass straw: Straw, Bamboo, Corn, Sorghum straw, Bean straw, Fruit shell, Palm shell, etc Kdjdpfx Aqovn D I Noqjr +Scrap metal: Car Shell, Aluminum casting, Household appliances, Scrap light metal,Automobile hub,etc +Paper mill waste: Paper mill slag, Paper mill rope, Paper mill offcut,etc +Wood pallet, scrap furniture, waste chair, tree roots recycling, etc. Double shaft shredder main body: The main body is welded with excellent steel plate to ensure the stability of the equipment under heavy load for a long time. Bearing: The bearing seat is split and easy to disassemble, and the movable knife, fixed knife, bearing and other parts can be quickly removed, and it is easy to maintain and replace the knife. The sealing structure can avoid the contact of broken materials and grease, and can also protect bearings and gears when handling liquid materials.

Condition: new, Year of construction: 2026, power: 11 kW (14.96 HP), Rotary drum dryer for drying various kinds of materials like sand, biomass, sawdust, red mud, bentonite, coal Diameter: 1200mm Length: 10000mm Power: 11-13KW Gradient: 3% Capacity: 1.5-3 t/h Weight: 14Tons Besides this model, we also have the other models of rotary drum dryer 1500x12000mm, 2400x20000mm, and complete drying system for various materials, welcome to contact us for more details Our factory can design suitable solution according to your specific requirements. Rotary drum dryers are highly efficient machines used extensively in the processing of wood chips, sawdust, and biomass. They operate by utilizing a rotating drum that heats and dries the materials as they are transported through the cylinder. The design of these dryers allows them to handle a wide range of particle sizes and moisture levels, making them suitable for various types of biomass. They can also tolerate high-temperature exhaust gases, which contributes to their efficiency and versatility in industrial applications. Rotary Drum Dryer for Wood Chip, Sawdust, Biomass 🌳 Introduction to Rotary Drum Dryers In the realm of biomass processing, moisture control is key. Enter the Rotary Drum Dryer, an indispensable machine designed to efficiently reduce the moisture content of wood chips, sawdust, and biomass. This essential tool enhances productivity, improves fuel quality, and is pivotal in biomass energy production. Let’s explore its functionality and benefits! 💡 💼 Key Benefits of Using a Rotary Drum Dryer 1. Energy Efficiency: Designed to optimize energy use, Rotary Drum Dryers consume less power while delivering high drying efficiency. 🌿💡 2. High Capacity: Capable of handling large volumes of biomass, these dryers are perfect for industrial applications where large-scale drying is needed. 🏭 3. Improved Product Quality: By achieving the optimal moisture content, the dryer enhances the quality of biomass for fuel, pellets, and other applications. 🔥 4. Versatility: Suitable for a wide range of materials including wood chips, sawdust, and various types of biomass, making it a versatile tool in any biomass processing plant. 🌳 # Application Fields and Materials of Rotary Drum Dryer II. Application Fields A. Agriculture - Drying of grains, seeds, and forage. - Processing of agricultural by-products like straw and husks. B. Food Industry - Dehydration of food products such as fruits, vegetables, and spices. - Preservation of food quality during drying. C. Chemical Industry - Drying of chemical powders, granules, and crystals. - Application in the production of fertilizers and detergents. D. Mining and Minerals - Drying of ores, coal, and mineral concentrates. - Reduction of moisture content for easier handling and processing. E. Construction Materials - Drying of sand, cement, and other construction aggregates. - Preparation of materials for manufacturing processes. F. Pharmaceuticals - Drying of pharmaceutical powders and active ingredients. III. Materials Processed by Rotary Drum Dryer A. Organic Materials - Biomass, wood chips, sawdust, and animal feed. B. Inorganic Materials - Sand, clay, limestone, and gypsum. C. Waste Products Kdsdpfxeq Igyvs Aqqjr - Sludge from wastewater treatment plants. - Industrial by-products for recycling or reuse.