Acclimatized Activated Sludge for Single-Reactor Nitrification
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Solution Overview
Problem
Existing wastewater treatment systems require complex constructions, consume a lot of energy, and rely on multiple reagents, making them economically burdensome and inefficient, especially in maintaining stable de-nitrification functions under varying conditions.
Innovation Solution
A method and system that acclimatize activated sludge to perform both nitrification and de-nitrification in a single reactor, using environmentally adapted biomass to cause concurrent reactions under controlled aeration levels, eliminating the need for external reagents and mathematical analysis, and allowing the system to self-regulate and maintain high de-nitrification capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional continuous activated sludge method is used with separate reactors for BOD removal, nitrification and de-nitrification, then treatment functions are achieved, but device complexity and energy consumption increase significantly
Solution Approach 1:
The patent merges BOD removal, nitrification, and de-nitrification functions into a single reactor by acclimatizing activated sludge to perform all three functions simultaneously. This eliminates the need for separate reactors and reduces construction complexity while maintaining reliable treatment performance.
Solution Approach 2:
The activated sludge is acclimatized to serve multiple functions: BOD removal, nitrification, and de-nitrification. This multi-functional approach allows a single reactor system to perform all necessary treatment operations, reducing the number of components and simplifying the overall system.
2Reliability
If multiple separate installations are used for wastewater treatment, then comprehensive treatment is achieved, but energy consumption increases by 35-50%
Solution Approach 1:
By combining all treatment functions in one reactor, the system eliminates redundant aeration and operation across multiple installations. The single reactor approach reduces total energy consumption by 35-50% while maintaining effective treatment of BOD, nitrogen, and phosphorus.
Solution Approach 2:
The acclimatized activated sludge continuously performs BOD removal, nitrification, and de-nitrification in an integrated manner within the single reactor, eliminating idle time and redundant operations between separate installations, thereby reducing overall energy consumption.
3Manufacturing precision
If conventional systems use external reagents and mathematical analysis for control, then treatment precision is maintained, but operational costs and system complexity increase
Solution Approach 1:
The acclimatized activated sludge automatically regulates its own metabolic processes to perform BOD removal, nitrification, and de-nitrification without requiring external reagents or complex mathematical control systems. The biological system self-regulates based on substrate availability and environmental conditions, simplifying operation while maintaining precision.
4Ease of operation
If separate nitrification and de-nitrification reactors are used, then reaction control is achieved, but the system cannot maintain stable de-nitrification capacity under varying conditions
Solution Approach 1:
The acclimatized activated sludge adapts its metabolic parameters to maintain stable de-nitrification capacity across varying conditions. The biological system adjusts its internal enzyme activities and pathway expressions in response to changes in substrate composition, temperature, and hydraulic loading, ensuring consistent performance without complex external control.
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 reduces energy consumption by 35-50% compared to prior technologies, maintains 90% de-nitrification capacity despite sewage inflow fluctuations, and optimizes sludge de-nitrification function across varying temperatures, while automatically correcting anomalies and reducing operational costs.
Implementation Method 1
nitrifying and de-nitrifying the waste water by these acclimatised micro-organisms
Implementation Method 2
microbial de-nitrification reactions were applied to waste water treatments
Implementation Method 3
specific measuring and aeration apparatuses are applied for controlling the waste water treatment
Data Source
AI summary
The invention relates to a method of treating water with activated sludge containing micro-organisms. The method comprises the steps of: preparing an environmentally adapted biomass mixture by adapting the activated sludge to a quantity of water having given characteristics in a single reactor under first levels of aeration, whereby the environmentally adapted biomass mixture acquires the capacity to cause concurrent reactions for BOD removal, nitrification and de-nitrification; and treating a portion of water having substantially the same given characteristics with the environmentally adapted biomass mixture capable of causing the concurrent reactions, in the single reactor under a second level of aeration not higher than the first levels of aeration.