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Our Profile
• Success in air pollution control since
• Specialist for odor removal in
- Waste water treatment
- Solid waste management
- Industries
• More than 1000 plants worldwide
• ISO-9001:2008
Success in air pollution control since 1986
Solid waste management
plants worldwide
Our Services
• Turn-key systems for air pollution control
• Consulting
• Design
• Engineering
• Project management
• Research and development
• Maintenance and spare parts
key systems for air pollution control
Our Solutions
• Biofilters
• Biotrickling filters
• Bioscrubbers
• Counter-current scrubbers
• Cross-flow scrubbers
• Multiventuri scrubbers
• Activated carbon filters
Our Customers… …
• Waste water treatment
• Waste treatment
• Composting
• Recycling
• Food processing
• Cigarette production
• Chemical industry
• Printed board production
• Biogas plants
… and their Problems
• Odour
• Inorganic acids
• Solvents
• Poisonous contaminants
• Dust
• Organic sulfur compounds
• Hydrogene sulphide
• Aerosoles
• Ammonia
Our Customers
• Bangladesh
• Bahrain
• Belgium
• China
• France
• Greece
• Deutschland
• Indonesia
• Italia
• Yemen
• Jordan
• Kazakhstan
• Croatia
• Malaysia
• Martinique
• Mexico
• Netherlands
• Norway
• Oman
• Austria
• Poland
• Romania
• Russia
• Saudi Arabia
Netherlands
Saudi Arabia
• Spain
• Singapore
• Slovakia
• Slovenia
• Switzerland
• Thailand
• Tunisia
• Turkey
• UAE
• UK
• Ukraine
• Vietnam
SolutionsBiofiltration
Biofiltration - Process
Removing of contaminants from the exhaust and
bio oxidation to carbon dioxide and water
Bacteria
Contaminants + O2
Removing of contaminants from the exhaust and
bio oxidation to carbon dioxide and water
Bacteria
Cell material + CO2 + H2O
Biofilter - Basic Flow Chart
Pump
Pre-scrubber
Fan
Support grid
Base filling
Main filling
Biofiltration – Advantages
• Low invest costs
• Low running costs
• Natural method
• Low water consumption
• Excellent odour removal
• Easy maintenance
• Self controlled
Biofilter - Pre-scrubberIntegrated air conditioning
Compact Biofilter - Pumping Station OmanStandard solution for small air flows
Pumping Station OmanStandard solution for small air flows
Covered BiofilterSolvent decomposition
Waste Water TreatmentInlet works (9.000 m³/h)
Waste Water TreatmentWWTP (2 x 14.000 m³/h)
Composting Plant MartiniqueBiofilter with integrated pre-scrubberscrubber
Waste TreatmentCovered biofilter with integrated preCovered biofilter with integrated pre-scrubber
Waste Water TreatmentWWTP in Poland (22.000 m³/h)
Composting PlantCovered biofilter (45.000 m³/h)
BiofilterComposting plant in France (82.500 500 m³/h)
Waste TreatmentCovered biofilter, Montpellier (180180.000 m³/h)
SolutionsChemical ScrubbingChemical Scrubbing
Chemical Scrubbing - Advantages
• Flexibility
• Low space demand
• High efficiency at high concentrations
• High buffer capacity
• No adaption time
• Full automatic operation
Advantages
High efficiency at high concentrations
Chemical Scrubber
2 NH3 + H2SO4
or
H2S + 2 NaOH
Na2S + 4 H2O2
or
Na2S + 4 NaOCl
(NH4)2SO4
Na2S + H2O
Na2SO4 + 4 H2O
Na2SO4 + 4 NaCl
Counter-current Scrubber
Clean air
Circulation system
Chemical
Spraying system
Waste air
Scrubber sump
Packing
Droplet separator
Counter-current ScrubberH2S removal at pumping station
Counter-current ScrubberPacked scrubber with biofilter for polishingPacked scrubber with biofilter for polishing
Counter-current ScrubberPacked scrubber as pre-treatment in front of a RTOtreatment in front of a RTO
Counter-current ScrubberScrubber housings designed for up to Scrubber housings designed for up to 90.000 m³/h
Counter-current ScrubberComposting plant
Counter-current ScrubberNH3 removal from sludge storageremoval from sludge storage
Chlorination ScrubberEmergency scrubber for chlorine storageEmergency scrubber for chlorine storage
3-stage Cross-flow Scrubber
Fan
Droplet separator
Scrubber sump
Circulation system
Clean air
Hydrogen peroxide
Packing
Spraying system
Waste air
Caustic sodaSoda
Sulfuric acid
3-stage Cross-flow Scrubber40.000 m³/h
3-stage Cross-flow ScrubberWaste air from WWTP (2 x 40.000 mm³/h)
3-stage Cross-flow ScrubberWaste air from WWTP (80.000 m³/h)
2-stage Cross-flow ScrubberWaste air from WWTP (75.000 m³/h)
2-stage Cross-flow Scrubber60.000 m³/h
SolutionsBiological oxidation(Biotrickling)Biological oxidation
Biological oxidation - Advantages
• Biological treatment
• High efficiency at high concentrations
• No consumables needed
• Automatic operation
• Natural method
• Easy maintenance
Advantages
High efficiency at high concentrations
Biotrickling PlantRemoval of H2S (3.000 ppm) at anaerobic sewage processppm) at anaerobic sewage process
Biotrickling Filter3-stage process
1. Biotrickling filter 2. Chemical Scrubber. Chemical Scrubber 3. Biofilter
SolutionsAdsorption - Activated CarbonActivated Carbon
Adsorption with Activated Carbon
• Low space demand
• High efficiency at high concentrations
• Automatic operation
• No adaption time
• Easy maintenance
• Mobile air treatment unit
Adsorption with Activated Carbon - Advantages
High efficiency at high concentrations
Adsorption - Activated CarbonContainer adsorber unit
Activated Carbon
Activated Carbon FilterFor small air volumes (4.000 m³/h)/h)
Activated Carbon FilterPolishing carbon filter
Activated Carbon FilterPolishing carbon filter
SolutionsMultiventuri ScrubberMultiventuri Scrubber
2-stage Multiventuri Scrubber
Cooling system
Cooling tower
Corrosion protection
Droplet separator
Fan
Clean air
Heat exchanger
Waste air
Multi Venturi
Scrubber sump
Recirculation pump
Biocide
Hydrogen sulphide
Packing
Spraying system
Multiventuri ScrubberRendering plant
Multiventuri ScrubberOutdoor installation
SolutionsSewage Sludge Drying PlantsSewage Sludge Drying Plants
Problems with Sludge Drying Plants
• High temperature
• Moist air
• Dust
• Odour
• Ammonia
Problems with Sludge Drying Plants
Solution
Multiventuri scrubber Fan Cooling scrubber
Biofilter
Waste air
Clean air
Cooling scrubber Heat exchanger Cooling tower
Complete Air Pollution Control Plant(55.000 m³/h)Complete Air Pollution Control Plant
Research & Development
• Complete pilot plant in 20“ container for tests
• Test evaluation / Protocol analysis
• Scrubbers with dosing station and integrated biofilter
• On the spot support
… to ensure to use the right plant
“ container for tests
Test evaluation / Protocol analysis
Scrubbers with dosing station and integrated biofilter
Tholander - Helping the world breath easily again
More than 1,000 references from a wide range of application areas around the
globe are testimony to the trust our satisfied customers have in us. Every hour, we
can clean more than 5 million m³ of waste air worldwide.
Helping the world breath easily again
references from a wide range of application areas around the
globe are testimony to the trust our satisfied customers have in us. Every hour, we
of waste air worldwide.
Weitere Infos unter:www.tholander.de