Green Rust and Enzymatic Agent for Total Nitrogen Reduction

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Solution Overview

Problem

Existing water treatment methods, such as those using green rust, are ineffective in significantly reducing total nitrogen (T-N) levels in food factory effluents, despite effectively reducing other pollutants like COD and phosphorus.

Innovation Solution

A water treatment agent comprising green rust and an enzymatic treatment agent containing a liver extract, yeast lytic enzyme, lactate dehydrogenase, and glucose dehydrogenase is used, which is produced by mixing green rust with the enzymatic agent and incubating the mixture to enhance nitrogen reduction capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If green rust is used for water treatment, then COD and phosphorus are effectively reduced, but total nitrogen cannot be sufficiently reduced

Engineering Contradiction:
Improvetotal nitrogenVSAvoidnitrogen reduction effectiveness
Core Design Contradiction:
Quantity of substanceVSReliability

Solution Approach 1:

The patent combines green rust with an enzymatic treatment agent containing liver extract, yeast lytic enzyme, lactate dehydrogenase, and glucose dehydrogenase to create a composite water treatment agent. This merging of chemical reduction capability (green rust) with enzymatic degradation capability addresses the limitation of green rust alone in reducing total nitrogen, while maintaining its effectiveness for COD and phosphorus removal.

Inventive Principle:
Principle #5Merging (Combining)

2Quantity of substance

If a composite treatment agent with multiple components is used, then total nitrogen reduction capability is improved, but device complexity increases

Engineering Contradiction:
Improvetotal nitrogenVSAvoidtreatment agent composition
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent creates a composite water treatment agent by combining green rust particles with an enzymatic treatment agent in a specific mass ratio (0.1-10% by mass of enzymatic agent relative to green rust). This composite structure integrates the chemical reduction properties of green rust with the biological degradation properties of the enzymatic agent, enabling simultaneous removal of COD, phosphorus, and total nitrogen through a single treatment process.

Inventive Principle:
Principle #40Composite materials

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 combined treatment agent effectively reduces total nitrogen, mixed liquor suspended solids (MLSS), and other pollutants in food factory effluents, improving water quality by enhancing enzymatic activity and microbial processes.

Implementation Method 1

stirring the water to induce an oxidation-reduction reaction

Methodology Applied
Scientific EffectOxidation-reduction reaction: Redox Reactions

Implementation Method 2

an enzymatic treatment agent containing a liver extract from a mammal (excluding a human being), a yeast lytic enzyme, lactate dehydrogenase, a glucose dehydrogenase

Methodology Applied
Scientific EffectEnzymatic degradation: Enzyme

Implementation Method 3

green rust that is generated in the water

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 4

obtaining green rust that is generated in the water

Methodology Applied
Scientific EffectSedimentation: Sedimentation

Data Source

PatentUS11186508B2Water treating agent and kit and methods for producing and using
Publication Date: 2021.11.30 SEINEN INC
  • US11186508B2 patent drawing
  • US11186508B2 patent drawing
  • US11186508B2 patent drawing

AI summary

An object of the invention is to provide a water treatment agent useful for reducing the MLSS and the like in a food factory effluent or the like and for reducing the total nitrogen of a water to be treated including nitrogen-containing compounds, a method for producing the water treatment agent, a method for treating water to be treated using the water treatment agent, and a kit for producing the water treatment agent. The water treatment agent of the invention is a water treatment agent that contains green rust and an enzymatic treatment agent containing a liver extract from a mammal (excluding a human being), a yeast lytic enzyme, lactate dehydrogenase, a glucose dehydrogenase, and water.