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Nijhuis presentation
- 2. Mission
- 3. Vision In the global market for Water, Recycling and Waste to Energy Nijhuis Water Technology aims to be: • Long term strategic partner offering innovative industrial solutions Strength • Long history with more than 2400 plants constructed worldwide • Highly trained level of process-knowledge of many industries • High application knowledge • Client-oriented approach
- 4. General information • 35 million € turnover • 130 employees • Industrial and municipal clients • 95% of turnover is exported • > 2400 references in > 50 countries worldwide
- 6. Food • Red Meat slaughterhouses • Poultry slaughterhouses • Meat processing • Petfood production • Convenience food • Fish processing • Dairy • Potato processing • Vegatable processing • Edible oil • Beverage
- 7. Oil & Gas • Produced Water • Refinery • Tank Farms • LNG • Bio-fuel • Fracking Chemical • Cosmetic • Health & Pharma Metal Textile Wood & Paper
- 9. Red Meat references worldwide
- 10. Available laboratory & pilot equipment • Filtration • Flocculation • Flotation • Biological treatment – aerobic • Biological treatment – anaerobic • Recycle container
- 11. Service & After Sales • Spare parts • Process optimalisation • Service contract • Help desk • Call-out service • Technical assistance • Upgrades • Proces visualisation • Remote control • Training
- 12. Primary treatment • Removal of coarse solids, suspended solids and emulsified matters Secondary treatment • Removal of dissolved matters Tertiary treatment • Polishing to high (recycle) standards
- 13. Types of pollution Pollution in waste water Organic Inorganic Suspended discrete particles Colloidal opaque solution Dissolved clear solution Fine particles That do not settle by gravity Example: Remains of breadcrums,starch, etc No particles visible one colour Example: Dairy & Ice products, Proteins, Fatts Clear water Example: Dissolved sugars,salt
- 14. Primary treatment Removal of coarse solids, suspended solids and emulsified matters • NFS – Filter systems • Gravisep – Gravity separators • NCF – Coagulation & Flocculation systems • Optiflot – Flotation systems
- 15. Gravisep – Gravity separators Removal of free separable matters • Oils • Fats • Sand Sedimentation units • Sand screw conveyor • API / CPI / TPI oil-water separators • Cross Flow Separators • Counter Current Separators • PPA modules • Hydrocyclones
- 16. NCF – Coagulation & Flocculation systems • Pipe flocculator • Tank Reactor • Electro coagulation • Chemical Dosing Equipment • Chemical make-up equipment
- 17. Optiflot – Flotation systems Removal of: • Suspended solids • Oil & Greases • Coagulated & flocculated materials
- 18. Optiflot – Flotation systems • Induced Air Flotation IAF • Induced Gas Flotation IGF • Dissolved Air Flotation DAF (with and without plate packs) • Dissolved Gas Flotation DGF (with and without plate packs)
- 19. Secondary treatment Removal of dissolved matters • Bioctor – Aerobic biological treatment • Anoctor – Anaerobic biological treatment
- 20. Bioctor – Aerobic Biological Treatment Systems • Bioctor S – SBR Sequence Batch Reactors • Bioctor C – Continuous biological treatment • Bioctor M – MBR Membrane Bio Reactors • Bioctor B – MBBR moving Bed Bio Reactor • Bioctor N – Biological Nitrogen Removal • Clarifiers – activated sludge settling • Clarifot – activated sludge flotation
- 21. Bioctor S – SBR Sequence Batch Reactors • All operations in one tank • Discharge of batch volume in 2 hours • Very suitable for nitrification – denitrification – phosphor removal • Easy in operation • Can handle flow and pollution variations • Single Batch, Double batch & Multiple batch variations
- 22. Bioctor S – SBR Sequence Batch Reactors
- 23. Bioctor C – Continuous biological treatment • Continuous discharge • Clarifier • Activated sludge flotation • Continuous feed / pollution load • Potential risk of (filamentous) bacteria carry over (for Settler only) • Water flows by gravity to several stages • Large space required
- 24. Bioctor C – Continuous biological treatment
- 25. Bioctor M – MBR Membrane Bio Reactors • Continuous discharge • Low space requirement due to high MLSS in aeration tank • TSS level in effluent is nihil • Low utility consumptions • Membranes can be placed in and outside of aeration tank • In-situ cleaning system for membranes
- 26. Bioctor M – MBR Membrane Bio Reactors
- 27. Bioctor B – MBBR moving Bed Bio Reactor • Continuous discharge • Aeration tank with carrier material • Filter inside tank to separate media from effluent • Aeration system medium to coarse bubble aeration
- 28. Bioctor B – MBBR moving Bed Bio Reactor Continuous discharge
- 29. Anoctor – Anaerobic Biological Treatment Systems • Anoctor U – UASB Upflow Anaerobic Sludge Blanket systems • Anoctor E – EGSB Extended Granular Sludge Blanket systems
- 30. UASB influent Boiler Boiler effluent Mix tk Biogas Overview Anoctor U - UASB process
- 31. Anoctor U - UASB • Removal of soluble matter for high strength waste water •Temperature 32 – 37°C •No nitrogen removal •Production of Biogas •Square tank •Round tank execution including plate pack •Up flow velocity : < 1 m/hr
- 32. Recycling & Polishing • Sandfilter • Carbopure & Activated carbon filter • Disinfection • Hypochlorite dosing • Ozone • UV • Reversed Osmosis
- 33. Sand filter • Removal of remaining TSS after flotation • TSS removal down to 3 to 5 mg/l • Continuous system which is easy in handling • Self cleaning, no backwash needed • No moving parts
- 34. Carbopure Removal of difficult biodegradable COD Removal of any residual cationic polymer Activated carbon with NWT’ advanced white water system Micro organisms are developed Removal by absorption and biodegradation Highly extend lifetime of activated carbon Very good effluent quality aeration CarboPure Filter feed dischargeFeed / Recirculation Tank Carbo Pure Aeration
- 35. Disinfection • Hypochlorite dosing • Disinfection by chemical dosing (hypo chloride) • Dosing can be controlled by Free Chlorine measuring • Ozone • Disinfection by dosing of Ozone • UV • Disinfection by UV light • Suitable for clear water
- 36. RO membrane system • Cartridge filter, 5 micron • Anti-scalant + acid dosing to prevent Ca3(PO4)2 precipitation • Spiral membranes designed for high recovery at low energy consumption • Fiberglass pressure vessels 600 psi • High salinity resistant piping: S316L / 904L • Automated biocide treatment (once per week) • Manual Cleaning In Place (CIP), Automatic CIP can be offered
- 37. Sludge treatment • To optimize sludge disposal costs Power & Heat recovery •Waste & Co Digestion •UASB •EASB •Sludge incineration •CO2 reduction
- 38. Waste 2 Energy - Sludge treatment • Decanter centrifuge • Dewatering drum • Belt press • Chamber filter press • Screw press separator • Sludge drying beds
- 39. Waste and Co-digestion • Waste digestion • Manure • Food factory wastes • meat related wastes • concentrated food wastes • Co substrate (Corn, Oil ..)
- 40. Waste & Co digestion - concept Sludge Industrial Waste Agro Waste Crops Macerating Sterilization Hygenisation Digesting Gasmotor Electricity Fertilizer Water Heat Biogas Sludge Dewatering Mixing Water Treatment Drying Granulating
- 41. Digester • Removal of high strength wastes • Long retention time to breakdown long chains • Double foil membrane roof, to provide gas buffer Includes net for (limited) sulphide removal • Mechanical mixing system • Heat exchanger in tank thru tubes placed along wall • Production of Biogas As fuel for boiler (heat), CHP (gas engine) (energy + heat)