Multi-Chamber Wastewater Treatment System with Intermittent Recirculation
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Solution Overview
Problem
Conventional wastewater treatment systems for domestic use are inefficient in removing pollutants such as suspended solids, BOD, ammonia, nitrate, and TKN, and they consume excessive power, with maintenance requirements for filters being frequent.
Innovation Solution
A High Efficiency Treatment System combining aerobic, anoxic, clarification, and polishing processes in a single system, utilizing a low-energy recirculation pump and an optimal filter design that operates intermittently, with a polishing chamber for filtration and disinfection, reducing pollutant levels and extending maintenance-free operation to 10-18 months.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional septic systems or aerobic treatment units are used, then the system structure is simple, but the pollutant removal efficiency is insufficient
Solution Approach 1:
The treatment system is divided into multiple functional chambers including pretreatment chamber, anoxic chamber, aeration chamber, clarification chamber, and polishing chamber. Each chamber performs a specific treatment function, allowing the system to achieve high pollutant removal efficiency through staged processing while maintaining modular simplicity
Solution Approach 2:
The system integrates multiple treatment processes (physical settling, anaerobic digestion, anoxic denitrification, aerobic oxidation, and filtration) into a single unified system that handles various pollutants (suspended solids, BOD, ammonia, nitrate, and TKN) simultaneously, achieving comprehensive treatment in one unit
2Use of energy by moving object
If traditional continuous operation systems are used, then the treatment is continuous, but the power consumption is excessive
Solution Approach 1:
The recirculation pump operates intermittently in periodic cycles (e.g., 10 seconds on, 50 seconds off) rather than continuously, significantly reducing energy consumption while maintaining effective treatment. The periodic operation allows the system to achieve the same treatment outcomes with much lower power usage
Solution Approach 2:
The system uses passive processes such as gravitational settling in the clarification chamber and natural biochemical reactions in the various chambers to perform treatment functions without requiring continuous mechanical intervention, reducing dependence on energy-consuming equipment
3Manufacturing precision
If filters are used in treatment systems, then the effluent quality is improved, but the maintenance frequency is high
Solution Approach 1:
The system performs preliminary treatment in upstream chambers (pretreatment chamber for grit removal, primary clarification for solids settling, and nutrient removal in anoxic/aeration chambers) to pre-clean the water before it reaches the final filtration stage. This reduces the loading on the filter, extending its maintenance-free operation period to 10-18 months
Solution Approach 2:
The system changes the operational parameters of the filter by using optimal design and operating it under controlled conditions with pre-treated influent, allowing the filter to operate efficiently for extended periods without maintenance while still achieving high effluent quality
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
The system effectively reduces pollutants to low levels, consumes less power, and maintains efficient operation with reduced maintenance needs, achieving improved removal efficiencies for total nitrogen, SS, and BOD5 while ensuring low pollutant levels in the filtrate.
Implementation Method 1
aerating mixed liquor
Implementation Method 2
aerobic process
Implementation Method 3
clarification process
Implementation Method 4
filter the effluent from the clarification chamber
Implementation Method 5
anaerobic bacteria partially degrade the organic material in the waste
Implementation Method 6
aerobic process
Data Source
AI summary
A high efficiency treatment system (system) wastewater treatment system including a tank with a multi-chamber tank system that is designed to remove pollutants from domestic wastewater. Embodiments of the system consist of a pretreatment chamber, which is in fluid communication with an anoxic chamber, which is in fluid communication with an aeration chamber, which is in fluid communication with a clarification chamber, and which is in fluid communication with a polishing chamber. The system can be applied to remove suspended solids, BOD, ammonia, nitrate and TKN from wastewater.