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doi:10.26479/2017.0205.07

Cited by 3 publications

(2 citation statements)

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“…The increase in COD and BOD concentrations was due to the municipal wastewater from the administrative building inside the cement campus that was mixed with industrial wastewater because the plant has a combined sewage system of both industrial and municipal wastewater. Also, the TN, TP, and TSS concentrations of our raw samples were at the range of the overall average cement wastewater effluent concentrations that vary from (64-395) mg/L, (10.5-66.6) mg/L, and (20-1590) mg/L respectively (Ipeaiyeda et al, 2017;Kumar and Thakur, 2017).…”

Section: Raw Cement Industrial Wastewater Characteristicsmentioning

confidence: 82%

“…As a result, effluent wastewater was highstrength polluted with organic compounds, nutrients, heavy metals and chemicals such as hydroxides and chlorides, which caused high alkalinity and change in color and temperature, in addition to large numbers of suspended solids, which represent 10% to 20% of the kiln feed captured in the rotary kiln (Kumar and Thakur, 2017). To meet the limitations of the effluent wastewater for reuse in agriculture fields, the application of physical, chemical, and biological treatment is necessary to conserve freshwater in other sectors such as agriculture and drinking water.…”

Section: Introductionmentioning

confidence: 99%

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Pilot-scale study based on integrated fixed-film activated sludge process for cement industrial wastewater treatment

Ali

Fouad

Meky

et al. 2021

J.Degrade.Min.Land Manage.

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Due to the lack of freshwater resources in Egypt, cement wastewater treatment was performed to widen the range of the water used in irrigation to face the massive future water scarcity. In this study, integrated fixed-film activated sludge (IFAS) was used as a biological treatment method. A laboratory pilot was established as a simulation of the IFAS process. The scale-pilot consists of a primary sedimentation tank, an IFAS tank equipped with an air blower, and a final settling tank. Three experimental attempts were performed using 3 different bio-carriers. In the first trial, Luffa sponges were used as natural bio-carriers and polyurethane sponges (PU) as artificial bio-carriers in the second trial, in addition to a combination between Luffa and PU sponges as a hybrid bio-carrier in the third trial. After analyzing the physicochemical properties of wastewater at the national research center in Cairo, the removal efficiency of TSS (total suspended solids), COD (chemical oxygen demand) , BOD(biological oxygen demand), TN (total nitrogen), and TP (total phosphorous) was 94.5%, 87.8%, 90.8%, 75.9%, and 69.4%, respectively in case of using the combination between Luffa and PU sponges. It can be concluded that using IFAS process was effective for cement wastewater treatment and the effluent wastewater met the Egyptian code limitations for reuse in agriculture purposes.

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Section: Raw Cement Industrial Wastewater Characteristicsmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

Pilot-scale study based on integrated fixed-film activated sludge process for cement industrial wastewater treatment

Ali

Fouad

Meky

et al. 2021

J.Degrade.Min.Land Manage.

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A systematic review on the impact of cement industries on the natural environment

Mishra¹,

Sarsaiya

Gupta³

2022

Environ Sci Pollut Res

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Implementation of the water footprint as a water performance indicator in industrial manufacturing units located in Greece: challenges and prospects

Nydrioti,

Moutsaki,

Leounakis

et al. 2023

Environ Sci Pollut Res

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Global water resources are under great pressure, so sustainable water and wastewater management is essential for every industrial unit. The Water Footprint (WF) is a multidimensional indicator of volumetric water use and pollution and is applied throughout the production cycle from the supply chain to the end user. The state-of-the art method of calculating the direct (operational) WF requires detailed records of water consumption and wastewater production per process, that are usually not available. In order to effectively implement the indicator, modi cations to the standard calculation method are usually necessary, to meet the requirements and characteristics of each production unit. The present study analyzes the modi cations required for WF assessment in three production units in Greece (i.e., cement, brewery and natural cosmetics) for which the WF is calculated for each production process and for the whole unit The WF assessment performed for the three case studies showed that both water consumption rates and WFs are within the lowest values (4.7 hL water/hL beer for brewery case study and 0.155 L/kg cement for cement case study) of the ranges reported in the international literature (4-8.8 hL water/hL beer and 0.14-0.413 L/kg cement). The total WF of the brewery after applying mass balances was calculated at 23.8 hL water / hL beer with virtual Grey WF contributing at 79.7% and Blue WF at 20.3%. For the cement manufacturing unit, using estimations from the plant operators and data from international literature the total WF of the plant was assessed at 0.159 L / kg cement with Blue WF contributing at 95.8%, Green WF at 1% and virtual Grey WF at 3.2%. For the natural cosmetics unit, after modifying the system boundaries properly, the total WF was assessed at 81.6 L / kg bulk with virtual Grey WF contributing at 88.8%. Through WF assessment, strategic actions could be identi ed to reduce water consumption and a benchmark could be provided to assess water performance between companies of the same branch.

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Untitled

Cited by 3 publications

References 1 publication

Pilot-scale study based on integrated fixed-film activated sludge process for cement industrial wastewater treatment

Pilot-scale study based on integrated fixed-film activated sludge process for cement industrial wastewater treatment

A systematic review on the impact of cement industries on the natural environment

Implementation of the water footprint as a water performance indicator in industrial manufacturing units located in Greece: challenges and prospects

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