Thermoplastic Polymer Filter Screen for Wastewater Treatment
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Solution Overview
Problem
Conventional wastewater treatment systems require frequent maintenance and replacement of activated particles and sand layers, leading to inefficiencies and increased costs due to clogging and the need for continuous mixing and pressurization.
Innovation Solution
A wastewater treatment apparatus featuring a physical filter unit with a filter screen layer and a changeable fluid dirt activation unit that includes a storage cylinder with a movable funnel and annular bubble generator, along with a microorganism filter unit and water storage unit, which allows for long-term operation without filter replacement and eliminates the need for pumping treated water for cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sand layer is used to filter impurities, then filtration is achieved, but the sand layer becomes clogged over time requiring frequent cleaning and maintenance
Solution Approach 1:
The patent extracts the problematic sand layer from the system and replaces it with a filter screen layer made of thermoplastic macromolecule polymer. This extraction removes the clogging issue while maintaining the filtration function, as the new material does not accumulate impurities in the same way sand does.
Solution Approach 2:
The patent changes the material parameter of the filter layer from sand to thermoplastic macromolecule polymer. This parameter change fundamentally alters the interaction between the filter medium and impurities, preventing clogging while maintaining filtration effectiveness.
2Reliability
If activated particles are used for treatment, then absorption of impurities is improved, but the particles must be continuously mixed and replaced frequently
Solution Approach 1:
The patent extracts the activated particles layer entirely from the system and replaces it with a fixed filter screen layer. This eliminates the need for continuous mixing mechanisms while maintaining treatment effectiveness through the polymer's absorption properties.
Solution Approach 2:
The filter screen layer made of thermoplastic macromolecule polymer performs both filtration and absorption functions without requiring external mixing or replacement mechanisms. The material's inherent properties enable it to maintain effectiveness over extended periods without active management.
3Reliability
If treated water is pumped back for cleaning, then filter restoration is achieved, but water usage efficiency decreases
Solution Approach 1:
The patent extracts the need for water back-pumping cleaning mechanism entirely by using a filter screen layer that does not require cleaning restoration. The thermoplastic macromolecule polymer material prevents impurity accumulation that would necessitate cleaning, eliminating this energy-consuming process.
4Loss of substance
If gravel sand is reused after cleaning, then material cost is reduced, but the gravel sand gradually decreases and requires resupply
Solution Approach 1:
The patent changes the filter material from gravel sand to thermoplastic macromolecule polymer. This parameter change eliminates the gradual material loss that occurs with sand layers during cleaning cycles, as the polymer filter screen does not require water back-pumping that causes gravel sand to decrease.
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 apparatus effectively filters impurities without clogging, reduces maintenance needs, and lowers operational costs by using a thermoplastic macromolecule polymer filter screen and microorganism filter units that do not require replacement, ensuring continuous filtration efficiency.
Implementation Method 1
a physical filter unit (20), having a waste water inlet (21) to communicate with the waste water and a filter screen layer (22) therein
Implementation Method 2
an annular bubble generator (33) therein to discharge the bubbles and particles of the waste water
Implementation Method 3
The water is first treated by the microorganism of the activated particles layer 121 to absorb the impurities of the water
Data Source
AI summary
A waste water treatment apparatus includes a physical filter unit. The physical filter unit includes a filter screen layer therein to filter impurities which are large particles and a distal end connected with a changeable fluid dirt activation unit to discharge the bubbles and particles of the waste water. A side wall of the storage cylinder is provided with a storage pipe to communicate with the top of at least one microorganism filter unit. The microorganism filter unit includes a microorganism filter cylinder to purify the waste water through microorganisms. The waste water treatment apparatus further includes a water storage unit. The water storage unit includes a water storage cylinder to collect the treated water for use.