Este archivo ha sido creado el 19/08/24 por Nieves Iglesias-Gonzalez
 

GENERAL INFORMATION
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1. Dataset title:
Dataset of the paper “From a hazardous waste to a commercial product Learning circular economy in the chemistry lab”


2. Authorship:


	Name:Iglesias-Gonzalez, Nieves
	Institution: Universidad de Sevilla
	Email: mnieves@us.es
	ORCID:  0000-0003-0708-8167
	Name: Ramirez, Pablo
	Institution: Universidad de Sevilla
	Email: pramirez@us.es
	ORCID: 0000-0002-5869-2199
	Name: Lorenzo-Tallafigo, Juan
	Institution: Universidad de Sevilla
	Email: juanortal@alum.us.es
	ORCID: 0000-0001-9214-4236

DESCRIPTION
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1. Dataset language:
	English


2. Abstract:
The laboratory experiment “Valorization of waste with high Zn content” was designed to introduce the concept of circular economy and waste recovery to students of the Materials Engineering Degree at the University of Seville (Spain).This laboratory experiment has been carried out every academic year since 2015-16.
This document contains the experimental data collected during the laboratory practices, which are necessary to respond to the questionnaire posed to the students. Likewise, the anonymized responses of the students to the pre- and post-laboratory questionnaires that were designed to evaluate the achievement of the pedagogical objectives are included.


3. Keywords: 
Material Engineering Degree; lab practices; circular economy; leaching; precipitation; cementation; waste management.
Grado Ingeniería de Materiales, prácticas de laboratorio; economía circular, lixiviación, precipitación; cementación; gestión de residuos.

4. Date of data collection:
[Since 01-01-2016

5. Publication Date:


6. Geographical location/s of data collection:
Sevilla


ACCESS INFORMATION
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1. Creative Commons License of the dataset:
CC-BY


2. Dataset DOI:
https://doi.org/10.12795/11441/162015


3. Related publication:

From a Hazardous Waste to a Commercial Product: Learning Circular Economy in the Chemistry Lab
Nieves Iglesias-Gonzalez, Pablo Ramírez, and Juan Lorenzo-Tallafigo
Journal of Chemical Education 2024 101 (8), 3485-3492
DOI: 10.1021/acs.jchemed.4c00509



METHODOLOGICAL INFORMATION
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1. Description of the methods used to collect and generate the data:
Leaching: mass data of 5M sulfuric acid added (g) to mantain pH 1.5, versus time (min). Mass data are transformed into volume (mL) by dividing by the density of the solution that has previously been measured (d= 1.29).
Cementation: Concentrations of Cu and Cd versus time, analyzed by AAS, in cementation test with metallic zinc.
Iron Precipitation: mass data of 1M NaOH versus pH. NaOH consumption calculated from the density of the NaOH solution (d= 1.042) expressed as kg/t of sample.
Basic Zinc carbonate precipitation: mass data of 1M sodium carbonate versus pH.
Learning Assessment: Students' grades in each laboratory session (Practice 1 to 4) and fianl grade. Students' Pre-Lab and Post-Lab Test Results. (Anonymized Data)



FILE OVERVIEW 
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1. File list:


	File name: DATA From a hazardous waste to a commercial product Learning circular economy in the chemistry lab
	Description:   one excel file with 2 sheets, the first called "results" includes the experimental data obtained in the laboratory exercise and the second contains the scores of the students before and after going through the laboratory.


2. File format:xlsx
excel