What Is Slop?
Also known as Spent Wash / Vinasse, it is an effluent generated while fermentation of Sugar Cane molasses in distilleries during process of Ethanol production.
General Description Of Ethanol Production And Slop Boilers
Slop is extremely hazardous to the environment if disposed directly.
With strict pollution control regulations in place to maintain Zero Liquid Discharge, it needs to be disposed properly without affecting surroundings and environment.
Typical Characteristics of Raw Slop
Colour: Dark Brown
Odour: Pungent
pH: 4.0 to 4.5 (acidic)
Solids Content: 9 to 12% (weight)
BOD: 45000-60000 ppm
COD: 110000-135000 ppm
BOD: Biological Oxygen demand
COD: Chemical Oxygen demand
Why You Need Slop Fired Boiler?
Conventional methods of Slop disposal like Bio methanation or Bio composting does not comply with environment norms as per Pollution Control Board Guidelines. Therefore, a full proof technology by incineration of concentrated Slop to ensure complete and safe disposal and to meet statutory norms of Zero Liquid discharge
Other Advantages of Slop Boilers
- Cost Efficiency: Using Slop or Spent Wash as fuel instead of regular fuels not only reduces fuel cost but also helps in getting rid of hazardous effluent.
- Energy Efficiency: Slop based boilers and power plant offer a balanced solution to generate and meet process steam and power requirements of distilleries.
- Additional Revenue: Potash rich ash is saleable as fertilizer and source of additional revenue.
- Reduced Cost Of Production: It offers a great way to produce ethanol at a reduced cost of production.
- Zero Liquid Discharge (ZLD): Slop fired boilers is best solution to meet stringent pollution control norms and achieve Zero Liquid Discharge (ZLD) in a distillery.
What should be Features of Slop Fired Boilers?
- It should sustain boiler operation even with varying Slop concentration.
- Should be suitable to fire variety of Biomass / Coal for combustion support as well as for 100% steam generation when
slop is not available. - Effective on-load cleaning of heat transfer sections to ensure continuous operation.
- Minimum operating cost.
- Automated operation.
Why Core Axis?
- Core Axis offer Proven designs Slop Fired Boiler with Travelling Grate technology vetted by industry / design experts.
- Best solution to achieve Zero Liquid Discharge norms and to meet Steam & Power requirements of Distillery.
- Our boilers are suitable to fire Concentrated slop ranging from 45 to 65 Brix.
- Boiler design require minimum support fuel for continuous operation.
- Option of firing variety of fuels such as Bagasse, Rice Husk, Coal, Wood Chips and other biomass as supporting fuel.
- Option of ESP or Bag Filter to meet stringent emission standards.
- Rugged design and Easy to operate technology with minimum maintenance & shutdown requirements.
- Minimum auxiliary power consumption.
- Boiler is suitable to generate 100% MCR steam only on support fuel also. This feature is helpful for distilleries operating in
off season on raw materials (Grains) other than molasses.
At Core Axis, we offer
New Slop Fired Boiler and complete Power plants.
Engineering consultancy for Slop Fired Boiler based Power Plants.