Preventive strategies for reuse and recycling of wastewater within the HDG production
Bibliographic Data
| ID | 23550904 |
|---|---|
| Authors | Cristina A Villamar (0000-0003-4654-0670, Universidad de Santiago de Chile), Katherine Salazar (National Polytechnic School), Karla Montenegro-Rosero (Universidad de Santiago de Chile), Luis Huaraca (National Polytechnic School), Kennedy C da Conceicao (0000-0001-7528-8617, Universidad de Santiago de Chile) |
| Year | 2022 |
| Volume | 85 |
| Issue | 1 |
| Pages | 265-278 |
| Publication date | 2022-01-01 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | Water Science & Technology (JOURNAL) |
| Journal identifiers | ISSN: 0273-1223 • E-ISSN: 1996-9732 |
| Publisher | IWA Publishing (PUBLISHER • GB) |
| DOI | 10.2166/wst.2021.621 |
| OpenAlex | W35050882 |
| Language | EN |
| Citations received | 4 |
| References cited | 18 |
The hot-dip galvanizing consumes raw materials, supplies, and influence in the quantity/quality of wastewater, opening advantage for its segregation, reuse, and recycling. Therefore, the aim was to establish strategies for segregation, recycling, and preventives process of wastewater from a hot dip galvanizing enterprise (>10,000 t/year of galvanizing steel or gs). A mass balance (inputs-outputs by 1 t gs), Sindex considering organic and inorganic parameters for segregation/recycling, and Water Pinch (Zn, COD, TDS) for reuse opportunities were determined. Flow diagrams were based on three scenarios that combine segregation/reuse/recycling, comparing saving water, energy, costs, and carbon dioxide equivalent (CO2-eq) emissions. Results (mass balance) demonstrated that the water consumption in the rising phases (2,355.2 L/t gs) corresponding to 95% of the total water demand. The best scenario combined reuse, segregation and recycling, which decreased up to 36% of treated wastewater, up to 40% of chemicals consumption, about 41% of treatment cost, close to 38% of energy consumed, and up to 17% of CO2-eq emissions by wastewater treatment. Therefore, taking preventive measures without the need of technological changes (treatment) can achieve on efficient water management within of the hot-dip galvanizing production in developing countries.
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| Unique citing works | 4 |
|---|---|
| Citations per year | 0.09 |
| Citation span | 1981 - 2024 (44) |
| Citation velocity | recent |
| Highly cited | No |