Water-Soluble Adsorbent Metering Unit for Wastewater Treatment
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Solution Overview
Problem
Existing methods for removing dissolved organic and/or inorganic substances from liquids are inefficient, particularly in wastewater treatment, where the removal of trace substances and microimpurities remains a challenge.
Innovation Solution
A water-soluble metering unit containing an adsorbent, such as activated carbon, bentonite, or zeolite, is introduced into the liquid to be treated. This metering unit disintegrates or disperses, releasing the adsorbent, which effectively binds dissolved substances due to its large surface area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If powdered activated carbon is used for adsorption of dissolved substances in water, then the removal of dissolved organic and inorganic substances is improved, but the handling and storage safety is worsened due to explosion risk
Solution Approach 1:
The patent combines adsorbent material (activated carbon, bentonite, or zeolite) with a water-soluble binder to form a composite metering unit. This composite structure maintains the high adsorption capacity of the powdered adsorbent while the binder provides mechanical strength and safety during handling and storage, eliminating explosion risks. The binder also ensures the metering unit disintegrates properly in water to release the adsorbent for effective adsorption.
2Device complexity
If granular adsorbent is used in a contact zone, then the treatment process is simplified, but the removal of trace substances and microimpurities is insufficient
Solution Approach 1:
The patent changes the particle size parameter of the adsorbent to submicron range (0.1 to 500 μm, preferably 1 to 100 μm) to significantly increase the specific surface area. This parameter change enhances the adsorption capacity for trace substances and microimpurities while maintaining the simplicity of the contact zone treatment process. The water-soluble metering unit delivers this fine particles directly into the water stream.
3Reliability
If submicron powdered activated carbon is added to water, then the adsorption capacity for dissolved substances is improved, but the handling and storage safety is worsened
Solution Approach 1:
The water-soluble binder acts as an intermediary carrier that encapsulates the submicron adsorbent particles. This intermediary structure allows safe handling and storage of the otherwise hazardous fine particles during manufacturing and transport. When introduced into water, the binder dissolves and releases the adsorbent particles, enabling them to perform their high-capacity adsorption function while eliminating the safety issues associated with handling loose submicron powders.
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 use of the metering unit with adsorbents significantly enhances the removal of dissolved organic and inorganic substances, improving the efficiency of wastewater treatment processes without posing a risk of explosion.
Implementation Method 1
a water-soluble metering unit, which contains an adsorbent... is metered into the liquid to be treated, in order to remove dissolved organic and/or inorganic substances... when metered into the liquid to be treated, the metering unit disintegrates or disperses and releases the adsorbent
Data Source
AI summary
An adsorbent and a metering unit are used in a facility for processing liquids for removing dissolved organic and/or inorganic substances. The water-soluble metering unit, which contains an adsorbent, is metered into the liquid to be treated, in order to remove dissolved organic and/or inorganic substances depending on the amount of dissolved organic and/or inorganic substances to be removed, wherein the adsorbent is released. When metered into the liquid to be treated, the metering unit disintegrates or disperses and releases the adsorbent which, on account of the then extremely large surface area, can bind high quantities of dissolved organic/inorganic substances.