ADI® AnDGF

See All Anaerobic Systems

Anaerobic Treatment Process using Dissolved Gas Flotation (DGF) process as pretreatment

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Smaller footprint
Less operator intensive
Lower power and sludge handling requirements
Potential for energy production

Discontinued product

Anaerobic Treatment Process using Dissolved Gas Flotation (DGF) process as pretreatment

Request Proposal

Smaller footprint
Less operator intensive
Lower power and sludge handling requirements
Potential for energy production

Discontinued product

Description

ADI®-AnDGF is a contact anaerobic biological pre-treatment system that uses a dissolved gas flotation (DGF) system for the clarification of biological solids and removal of product solids and O&G. The biological solids are returned to the contact anaerobic reactor to maintain treatment levels in the reactor.

Pretreatment with of wastewater with high BOD concentrations (> 2,000 mg/L)
Wastewater that contains moderate to high levels of product TSS and O&G that ordinarily would require physical/chemical pretreatment prior to anaerobic treatment

Features

Costing Savings

Save on energy costs
Low energy consumption design
Significantly less energy-intensive than aerobic systems
Recover energy from biogas to reduce plant’s fossil fuel usage
• Eliminate wastewater surcharges
• Reduce or eliminate chemical usage

Environmental Benefits

Continuously meet discharge requirements
Convert organic waste to recoverable green energy (heat and power)
Waste sludge suitable for land application as liquid fertilizer due to high nutrient content
Improve local and global water security

Process Advantages

Yields higher quality effluent than other anaerobic processes
Does not require difficult to maintain granular sludge or expensive media
Has a much lower sludge yield (up to 90% less) than aerobic processes
Requires considerably less electricity (up to 95% less) than an aerobic process
Can better sustain slug loading than an aerobic system
Produces higher solids sludge (up to 8%), lower sludge volume than other biological processes
Produces methane-rich biogas, use-able as a plant energy source

Simplified Operation & Maintenance

Few equipment and moving parts results in low maintenance requirements
Minimal operator attention
Flexible sludge wasting program
Data trending for process control
Cover provides easy access for sampling and maintenance

Specs

Reactor Type (Organic Loading Rate)

Intermediate Rate