Dual-Chamber Reactor for Sludge Minimization via Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wastewater treatment processes produce excessive biomass and sludge, requiring costly chemical conditioning and subsequent mechanical/thermal dewatering, which is inefficient and costly, and advanced thermophilic processes struggle with high solid concentrations and chemical-physical limitations.
Innovation Solution
A dual treatment chamber reactor system, where the first chamber performs thermophilic biological oxidative treatment under optimal conditions and the second chamber conducts physical-mechanical dewatering using ultrafiltration membranes, optimizing both processes to minimize sludge production and enhance dry substance concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional biological treatment processes are used, then organic matter degradation is achieved, but large quantities of biomass and sludge are produced requiring costly chemical conditioning and mechanical dewatering
Solution Approach 1:
The reactor is divided into two distinct chambers: a first chamber for thermophilic biological oxidation and a second chamber for mechanical concentration and dewatering. This segmentation allows each chamber to operate under optimized conditions for its specific function, enabling simultaneous organic degradation and sludge minimization without requiring separate chemical conditioning and dewatering equipment
Solution Approach 2:
The invention merges the biological treatment function and mechanical dewatering function into a single integrated reactor system. The dual-chamber design combines thermophilic oxidation processes with ultrafiltration-based mechanical concentration, eliminating the need for separate chemical conditioning and dewatering treatment stages while reducing overall sludge production
2Quantity of substance
If advanced thermophilic treatment processes are used, then sludge production is reduced, but high solid concentrations cannot be achieved and subsequent mechanical/thermal concentration is required
Solution Approach 1:
The system utilizes temperature parameter changes to enable different processes in each chamber. The first chamber operates at thermophilic temperatures (50-60°C) for optimal biological oxidation, while the second chamber operates at different hydraulic and thermal steady state conditions optimized for mechanical concentration and dewatering, allowing achievement of high solid concentrations up to 30% dry substance
3Productivity
If thermophilic reactor operates for biological oxidation, then organic degradation is maximized, but the treated flow requires heavy chemical conditioning for subsequent dewatering
Solution Approach 1:
The second chamber acts as an intermediary between the thermophilic oxidation chamber and the final discharge. It receives the treated flow from the first chamber and performs mechanical concentration and dewatering under optimized conditions, eliminating the need for heavy chemical conditioning reagents that would otherwise be required to enable dewatering of thermophilic reactor effluent
4Object-generated harmful factors
If separate chemical conditioning and mechanical dewatering equipment are used, then sludge disposal is achieved, but management costs increase due to conditioning reagent costs
Solution Approach 1:
The invention combines biological oxidation and mechanical dewatering into a single dual-chamber reactor system, eliminating the need for separate chemical conditioning equipment and mechanical dewatering equipment. This integration reduces management costs by eliminating conditioning reagent costs while simplifying the overall treatment process configuration
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 residual biomass and sludge volume, allows for pathogen reduction, and decreases treatment costs by minimizing sludge disposal and valorizing residual elements, while maintaining optimal hydraulic and thermal conditions for both processes.
Implementation Method 1
a first treatment chamber (1), adapted to be filled to a predetermined hydrostatic level and to determine a biological oxidation process of a flow of slurry fed inside it
Implementation Method 2
a second treatment chamber (2), adapted to be completely filled and to determine a physical/mechanical concentration and dewatering treatment of a liquid residue deriving from the biological oxidation process
Implementation Method 3
a second duct (5), emerging from a top area of the second treatment chamber (2) and terminating above the hydrostatic level of the chamber (1), adapted to aeraulically connect the chambers (1, 2) and to maintain their hydrostatic equilibrium
Data Source
Figure 1a~1b
Figure 2a
Figure 3a~3b
AI summary
The invention concerns a reactor with dual treatment chamber, particularly for slurry and sludge obtained from biological treatment plants, comprising: - a first treatment chamber (1); - a second treatment chamber (2); - a first duct (4), adapted to hydraulically connect, directly and gravimetrically, said first and second chamber (1, 2); - a second duct (5), adapted to aeraulically connect said first and second chamber (1, 2) and to maintain their hydrostatic equilibrium, where the first treatment chamber (1) comprises feed means (IN) of a flow of slurry (11) and oxygenation means (9) adapted to determine a biological oxidation process of said flow of slurry (11) fed inside it and where said second treatment chamber (2) comprises concentration and dewatering means (28) adapted to determine a physical and mechanical treatment process of a fluid residue coming from the first treatment chamber (1).