PATENT CLAIM ANALYSIS

Application Number: 16084224
Application Type: Utility
Filing Date: 2018-09
Publication Date: 2019-07
Patent Classification: ["436", "161000"]

Abstract:
The present invention discloses a device for measuring adsorption/desorption of contaminants onto surface bed sediments and a method of using the device. The measurement device includes a sediment sample disc, a sample holder, a reaction cylinder, a liquid collection cylinder, and a liquid circulating member from inside to outside, the liquid circulating member consisting of rubber pipes and a peristaltic pump. According to the method of using the device for measuring the adsorption/desorption of contaminants onto surface bed sediments, the full contact of bed sediments with pore water and the full exchange of overlying water with pore water are realized through liquid circulation without changing the arrangement modes of the bed sediments; any thickness of bed sediments can be performed on experiments, particularly for thin-layer bed sediments; and natural permeation and accelerated permeation of pore water through bed sediments can be switched simply by adjusting the flow rates of the peristaltic pump and by opening/closing of vent holes. Adsorption characteristic parameters obtained through the device and the method provide, for water quality models, data support which conforms to the natural existing condition of bed sediments and is more scientific and reasonable, and the device and the method achieve significant environmental benefits.

Claim (Index 6):
A method of using the device for measuring the adsorption/desorption characteristic of surface bed sediments on contaminants according to  claim 1 , comprising the following steps:\n preparing a bed sediment sample; according to a set thickness of bed sediments for experiment, transferring the sediment sample to the sediment sample disc fixed with a plastic woven sleeve, or laying a surface layer of bed sediment sample collected on-site in the sediment sample disc fixed with the plastic woven sleeve according to the set thickness of the bed sediments for experiment; placing the sediment sample disc on the sample holder, and placing the sample holder in the reaction cylinder; setting a flow of the peristaltic pump; wherein if a liquid passes through the bed sediment sample in a natural permeation mode, the vent holes on the wall of the reaction cylinder are opened, and the flow of the peristaltic pump is calculated by using a natural permeation rate according to a formula below, the flow of the peristaltic pump being greater than the permeation flow; if the liquid passes through the bed sediment sample in an accelerated permeation mode, the vent holes on the wall of the reaction cylinder are closed, and the flow of the peristaltic pump is calculated by using a set accelerated permeation rate according to the formula below, wherein after the experiment starts, the flow of the peristaltic pump is increased to a preset value; the flow of the peristaltic pump is calculated by using the following formula:\n Q \u03c0/4 \u00d7d 2 \u00d7v \u00d760 \n wherein Q is the flow of the peristaltic pump, mL/min; d is the inner diameter of the sediment sample disc, cm; v is the permeation rate, cm/s, a natural permeation rate being preliminarily selected as 5\u00d710 \u22124  cm/s; injecting a liquid prepared for reaction completely into the reaction cylinder, turning on the peristaltic pump, and timing the experiment; extracting 10 mL of the liquid from the reaction cylinder by using a needle tube at set times, guiding the extracted liquid through a 0.45 \u03bcm aqueous filter membrane; measuring a concentration of the liquid at these times to obtain an adsorption/desorption kinetic curve of the bed sediments, and using the difference between the initial and final concentration of the liquid to calculate an adsorption/desorption quantity of sediments; after the experiment ends, air-drying and weighing the bed sediments in the sediment sample disc, to obtain dry weight of the surface bed sediments, such that the adsorption/desorption quantity of the bed sediments per unit mass or per unit area is obtained, and therefore the adsorption/desorption characteristic of the surface bed sediments is obtained.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 97.0
- Lexical Diversity: 2.14851
- Patent Class: 436.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14112711', '15278870', '11247014', '10923364', '12627220']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.62703900028166
- 35 USC 102 Novelty (BERT): 0.4842893974687412
- Combined Prediction Score: 0.6127640400003682
- Mean Citation Score: 211.123602
- Max Citation Score: 232.58218
- Similarity Product: 178.64158127964257

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test