Youthful Microbe Dosing for Class A Sludge Production
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wastewater treatment plants face challenges in producing safe and environmentally acceptable sludge due to the presence of hazardous pollutants, with existing methods being costly, unreliable, and requiring harsh chemicals, and current disinfection processes failing to meet safety and environmental standards.
Innovation Solution
The use of youthful microbes, added at controlled dosing rates to wastewater treatment systems, which maintain a youthful population to effectively reduce pollutants, produce pathogen-free sludge without disinfectant processing, and achieve Class A sludge quality by degrading pollutants and stabilizing the sludge for safe application.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional sludge treatment methods are used, then sludge can be processed, but the process requires harsh chemicals and incurs high costs while failing to meet safety standards
Solution Approach 1:
The patent employs indigenous microorganisms naturally present in the sludge to perform biodegradation and pathogen reduction. The system allows these microbes to self-propagate and self-regulate within the aerated lagoon, eliminating the need for external chemical treatments or imported microbial cultures. This self-service approach achieves Class A sludge standards without harsh chemicals while reducing operational costs.
2Reliability
If disinfection processes are applied to sludge, then pathogen reduction is achieved, but the process incurs high costs and requires additional processing steps
Solution Approach 1:
The patent converts the naturally occurring indigenous microorganisms, which could be seen as contaminants, into beneficial agents for pathogen reduction. By providing aerobic conditions through aeration, the system enables these microbes to outcompete and reduce pathogens naturally, achieving disinfection effects without external chemical disinfectants or complex disinfection equipment.
Solution Approach 2:
The system utilizes the sludge's own microbial population to perform pathogen reduction. The indigenous microbes, when provided with adequate oxygen through aeration, naturally reduce pathogens to Class A levels without requiring external disinfection processes, equipment, or chemicals.
3Reliability
If sludge stabilization equipment is used, then sludge treatment is achieved, but capital expenditure and operating costs increase significantly
Solution Approach 1:
The patent employs naturally occurring indigenous microorganisms that are already present in the sludge to perform stabilization and biodegradation. These microbes self-propagate within the aerated lagoon system, eliminating the need for purchased microbial cultures or specialized stabilization equipment. The system achieves Class A sludge standards using only basic aeration infrastructure.
4Productivity
If existing treatment methods are applied, then wastewater can be treated, but pollutant reduction fails to meet environmental standards
Solution Approach 1:
The patent changes the environmental parameters within the treatment system by maintaining continuous aeration to provide oxygen. This parameter change (introduction of oxygen) transforms the microbial community activity, enabling enhanced biodegradation of pollutants and reduction of organic matter to levels meeting environmental discharge standards. The aerobic conditions promote more effective pollutant breakdown compared to conventional anaerobic or facultative systems.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach significantly reduces pollutants in wastewater effluent and sludge, achieving at least 90% reduction in DOD and TSS, produces pathogen-free Class A sludge without additional processing, and reduces disposal costs by eliminating the need for costly disinfection and stabilization steps.
Implementation Method 1
adding a plurality of microbes to the wastewater treatment system at a controlled and predetermined dosing rate; the microbes selected to remove the pollutants from the wastewater
Implementation Method 2
the microbes selected to remove the pollutants from the wastewater; whereby the pollutants in the wastewater are reduced providing an effluent having pollutants as measured by DOD and TSS reduced by at least about 90%
Data Source
AI summary
A method of providing, maintaining and using a youthful added microbe population for the treatment of wastewater. A method to obtain Class A sludge without the need for disinfecting procedures.