Design of a hospital laundry effluent clarification system

Authors

DOI:

https://doi.org/10.33448/rsd-v11i15.37275

Keywords:

Coal ash; Zeolites; Waters clarification; Laundry service hospital; Adsorption.

Abstract

Approximately 20% of the mineral coal ash (MCA) generated worldwide, during the combustion of this fossil fuel, has been used to produce Portland cement. Other applications include soil improvement, ceramic industry, catalysis, and an application with special interest for this work which is the synthesis of zeolites. A hospital effluent clarification system was developed using MCA as an adsorbent for substances responsible for the color of the effluent generated by the laundry. A perfect mix tank promotes intimate contact between MCA and the effluent. At the exit of the mixing tank, a pH sensor correlated the value of this variable with the concentration of MCA in the mixture inside the tank. The information about the pH of the mixture was then sent to a programmable logical controller (PLC), which regulated the motor speed of a screw conveyor, with the aid of a frequency inverter. A color removal efficiency of the order of 99.8% was achieved. The proposed clarification system can operate both in batch and continuous. In the first case, the ideal operating conditions can be set. The strategy for adjusting operating conditions is to obtain an adequate nominal capacity for the system by reducing or increasing the number of cyclones per battery or the number of cyclone batteries.

Author Biographies

Daniel de Morais Sobral, Federal Rural University of Pernambuco; Northeast Biotechnology Network

Northeast Biotechnology Network, Brazil

Ivan Xavier Lins, Federal University of Pernambuco; Northeast Biotechnology Network

Northeast Biotechnology Network, Brazil

Galba Maria Campos-Takaki, Catholic University of Pernambuco; Northeast Biotechnology Network

Northeast Biotechnology Network, Brazil

Nucleus of Research in Environmental Sciences and Biotechnology of Catholic University of Pernambuco, Brazil

Valdemir Alexandre dos Santos, Catholic University of Pernambuco; Northeast Biotechnology Network; Advanced Institute of Technology and Innovation

Northeast Biotechnology Network, Brazil

Advanced Institute of Technology and Innovation, Brazil

References

ABNT - Brazilian Association of Technical Standards. (2016). NBR 16530 Aquatic ecotoxicology – Acute toxicity – Test method with Artemia sp. (Crustacea, Brachiopoda). Brasília, DF.

ANVISA – National Health Surveillance Agency. (2009). Clothing processing in health services: prevention and risk control. Brasília, DF. 102 p.

APHA - American Public Health Association. Standard. (1985). Methods for the examination of water and wastewater. 16th ed. Washington. US.

Balji, G. B., Surya, A., Govindaraj, P., and Ponsakthi, G. M. (2022). Utilization of fly ash for the effective removal of hazardous dyes from textile effluent. Inorganic Chemistry Communications, 143, 109708.

Bisht, D., Sinha, S., Nigam, S., Bisaria, K., Mehrotra, T., and Singh, R. (2021). Adsorptive decontamination of paper mill effluent by nano fly ash: response surface methodology, adsorption isotherm and reusability studies. Water Science and Technology, 83(7), 1662-1676.

Cavion, F., Fusco, L., Sosa, S., Manfrin, C., Alonso, B., Zurutuza, A., Loggia, RD, Tubaro, A., Prato, M., and Pelin, M. (2020). Ecotoxicological impact of graphene oxide: toxic effects on the model organism Artemia franciscana. Environmental Science: Nano, 7(11), 3605-3615.

da Fontoura, L.P., Puntel, R., Pinton, S., de Ávila, D.S., da Rocha, J.B.T., de Souza, D.O., and Roos, D.H. (2021). A toxicological comparison between two uranium compounds in Artemia salina: Artificial seawater containing CaCO3. Marine Environmental Research, 163, 105221.

Dewanto, P., Munadi, M., and Tauviqirrahman, M. (2019). Development of an automatic broiler feeding system using PLC and HMI for closed house system. American Academic Scientific Research Journal for Engineering, Technology, and Sciences, 58(1).

Diaz-Sosa, V.R., Tapia-Salazar, M., Wanner, J., and Cardenas-Chavez, DL. (2020). Monitoring and Ecotoxicity Assessment of Emerging Contaminants in Wastewater Discharge in the City of Prague (Czech Republic). Water, 12(4), 1079.

Hopson, M. N., and Fowler, L. (2022) An analysis of and recommendations for comprehensive state water recycling policy strategies in the US. Resources, Conservation and Recycling. 183, 106356.

Hossain, M.U., Poon, C.S., Lo, I.M., and Cheng, J.C. (2017). Comparative LCA on using waste materials in the cement industry: A Hong Kong case study. Resources, Conservation and Recycling, 120, 199-208.

Ianna, M.L., Reichelt-Brushett, A., Howe, P.L., and Brushett, D. (2020). Application of a behavioral and biochemical endpoint in ecotoxicity testing with Exaiptasia pallida. Chemosphere, 257, 127240.

Khery, Y., Daniar, S. E., Mat Nawi, N. I., Bilad, M. R., Wibisono, Y., Nufida, B. A., Ahmadi, A., Jaafar, J., Huda, N., and Kobun, R. (2022) Ultra-Low-Pressure Membrane Filtration for Simultaneous Recovery of Detergent and Water from Laundry Wastewater. Membranes. 12(6), 591.

Lamskova, M., M. Filimonov, A. Novikov, L. Samofalova, and S. Pavlova. (2019). Modeling of the Separation for System the Liquid - Solid in the Battery of Hydrocyclones. In Journal of Physics. Conference Series (Vol. 1278, No. 1, p. 012011). IOP Publishing.

Lima, F. S., de Barros Neto, E. L., Melo, R. P. F., da Silva Neto, J. M., Bezerra Lopes, F. W., and de Jesus Nogueira Duarte, L. (2022). Removal of diclofenac sodium from aqueous solution using ionic micellar flocculation-assisted adsorption. Separation Science and Technology. 1-15.

Liu, D., Yang, Y., and Zhao, F. (2019). Preparation of adsorbent from fly ash for methylene blue wastewater treatment. In IOP Conference Series: Materials Science and Engineering (Vol. 490, No. 2, p. 022040). IOP Publishing.

Manjakkal, L., Dang, W., Yogeswaran, N., and Dahiya, R. (2019). Textile-based potentiometric electrochemical pH sensor for wearable applications. Biosensors. 9(1), 14.

Novais, R.M., Carvalheiras, J., Tobaldi, D.M., Seabra, M.P., Pullar, R.C., and Labrincha, J.A. (2019). Synthesis of porous biomass fly ash-based geopolymer spheres for efficient removal of methylene blue from wastewaters. Journal of cleaner production, 207, 350-362.

Popescu, A. I., and Necula, C. (2019). Determination of the Calorific Power of Densified Solid Biofuels. Hydraulics. (3).

Svarovsky, L. (2000) Solid-Liquid Separation. 4th Edition. Linacre House, Jordan Hill, Oxford OX2 8DP: Butterworth-Heinemann, 554 p.

Triwibowo, B., Sammadikun, W, and Musfiroh, R. (2018). Scale-Up of Solid-Liquid Mixing Based on Constant Power/Volume and Equal Blend Time Using VisiMix Simulation. In MATEC Web of Conferences (Vol. 187, p. 04002). EDP Sciences.

Wang, Y., and Serventi, L. (2019). Sustainability of dairy and soy processing: a review on wastewater recycling. Journal of Cleaner Production, 237, 117821.

Yin, Q., Shreka, M., Gao, R., and Zhu, Y. (2019). Design of ship exhaust gas desulfurization control system based on S7-1500 PLC. In Journal of Physics: Conference Series (Vol. 1345, No. 3, p. 032083). IOP Publishing.

Zanetti, F., De Luca, G., and Sacchetti, R. (2010). Performance of a full-scale membrane bioreactor system in municipal wastewater treatment for reuse purposes. Bioresource technology, 101(10), 3768-3771.

Downloads

Published

18/11/2022

How to Cite

SOBRAL, D. de M.; NOVAES, C. F.; LINS, I. X.; CAMPOS-TAKAKI, G. M.; SANTOS, V. A. dos. Design of a hospital laundry effluent clarification system. Research, Society and Development, [S. l.], v. 11, n. 15, p. e317111537275, 2022. DOI: 10.33448/rsd-v11i15.37275. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/37275. Acesso em: 31 jan. 2023.

Issue

Section

Engineerings