Jeans Processing and Water Reuse Systems in a Brazilian Semiarid Region

Silva, Bruno Lopes; Xavier, Maria Gilca Pinto; Sobral, Marcos Felipe Falcão

doi:10.24857/rgsa.v16n2-030

Cited by 6 publications

(1 citation statement)

References 10 publications

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“…Among the technologies available for the final disposal of effluents, the fertirrigation of agricultural crops has been playing a prominent role, whether to solve the problem of the lack of treatment of effluents, of the degradation of the watercourses, or for their scarcity. The adoption of measures that allow the reuse of wastewater brings a reduction in environmental impacts and production costs, since no investments are needed in the treatment of this effluent, presenting itself as a competitive advantage for industry (Silva, Xavier & Sobral, 2022).…”

Section: Theoretical Framementioning

confidence: 99%

Chemical Variation in Soil Fertirrigated With Effluent

Souza¹,

Moreira²,

Silva³

et al. 2023

RGSA

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Purpose: The aimed witch of this study was to evaluate the chemical changes in soil cultivated with Panicum maximum cv. Mombaça grass, when submitted to application of different doses of dairy effluent (ARL), with sodium as a limiting factor. Method/design/approach: Was applied ARL in an area cultivated with Panicum maximum cv. Mombaça grass in order to provide sodium at concentrations of 75, 150, 300 and 600 Kg ha-1. Soil samples were collected at different depths and times, having determined the active acidity (pH) and phosphorus (P), potassium (K), organic matter (MO) and cation capacity (CTC). Results and conclusion: Regarding the initial conditions, the pH, MO and CTC of the Soil Did not show significant Variations. However, there are reductions in P concentrations and increases in K concentration. For Environmental Conservation, the application of ARL providing 600 kg ha-1 year-1 sodium may become a Recommendation for treatment and reuse of these effluents, in relation to initial conditions, soil pH, MO and CTC did not show significant variations. However, there were reductions in P concentrations and increases in K concentration. For environmental conservation, the application of ARL providing 600 Kg ha-1 year-1 sodium may become a recommendation for treatment and reuse of these effluents. Research implications: In the relevant literature, a technical recommendation that restricts the application of effluents providing 150 kg ha-1 sodium, in halophyte cultures, has been used interchangeably, making it difficult to use this effluent. However, this research concluded that the dairy effluent can be used in the fertigation of Panicum maximum cv. Mombaça grass with application rate of up to 600 Kg ha-1sodium. Originality/value: This study indicates an increase in the amount of sodium to be delivered to the soil through the use of effluents.

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Section: Theoretical Framementioning

confidence: 99%

Chemical Variation in Soil Fertirrigated With Effluent

Souza¹,

Moreira²,

Silva³

et al. 2023

RGSA

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A Study on the Projection of Drinking Water 2023-2033 in Dki Jakarta Indonesia

Fikri¹,

Fauzi²,

Rafika³

2023

RGSA

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Purpose: The purpose of this research is to analyze the drinking water needs and raw water availability of DKI Jakarta Province. Theoretical framework: The theoretical basis for the population projections uses mathematical modeling (arithmetic, logarithmic, exponential, and geometric) for the next 10 years. Drinking water demand projections are obtained by calculating the demand for drinking water and the results of the population projections. Then compared to raw water availability. Potable water demands are calculated based on design criteria Method/design/approach: The method used is research and development by projecting the population of the last 10 years to predict the population of the next 10 years. The total projected drinking water needs obtained were compared with the availability of raw water. Results and conclusion: The results show that the demand for drinking water in DKI Jakarta in 2023 will be 30,892 liters/second, while the raw water capacity will only be 16,850. This shows that the level of drinking water service in DKI Jakarta is only 54.54%. When compared to 2015, DKI Jakarta's drinking water access service decreased from 65.13% in 2015 to 54.54% in 2023. Research implications: If DKI Jakarta does not succeed in finding raw water sources, it is estimated that drinking water services will drop dramatically to 35.68% in 2033. Originality/value: Studies on the projection of drinking water in DKI Jakarta, Indonesia for the next 10 years have not been conducted. So this study has good originality and becomes a study with high novelty. This study can also be utilized by DKI Jakarta government authorities in formulating environmental and health management policies.

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Analysis of the Potential for Reusing Sanitary Effluents in the Hydrographic Basin of the Ipojuca River

Soares,

Montenegro,

Da Silva

et al. 2023

RGSA

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Objective: This study aims to present an assessment of the potential for reusing effluents from domestic sewage treatment plants in the Hydrographic Basin of the Ipojuca River. Theoretical Framework: In regions facing water scarcity, effluent reuse emerges as an alternative to alleviate pressures and reduce contamination of water sources. In this regard, the choice of the Ipojuca River Watershed is justified due to the susceptibility of its constituent municipalities to water scarcity and pollution, as well as the fact that the Ipojuca River has been classified as the third most polluted in the country. Methodology: The methodology involved basin characterization, data collection from the sanitation services provider to perform quantitative and qualitative evaluation of reclaimed water supply, identification of demands based on consumptive uses (industry and irrigation), existing water use permits, and the provider's customer database. Additionally, georeferenced maps were generated for spatial analysis of the water balance. Results and Conclusion: Twelve Sewage Treatment Plants were identified, four of which are still under construction, with nominal treatment capacities exceeding the identified irrigation and industrial demands, except for two of them. In terms of quality, for the analyzed parameters, the treatment plants demonstrated satisfactory performance, suggesting that the effluent could be utilized for restricted purposes without the need for further treatment. Lastly, geospatially, the demands are located within a radius of 10km from the analyzed plants, in most cases. Research Implications: It can be inferred that the basin holds a significant reuse potential to be explored as an alternative for enhancing water availability and reducing effluent discharge into the Ipojuca River. Originality/Value: The results obtained through this unprecedented analysis in the watershed serve as a reference for policymakers and implementers of water resources management policies, as well as an encouragement for potential producers and consumers of reclaimed water.

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Jeans Processing and Water Reuse Systems in a Brazilian Semiarid Region

Cited by 6 publications

References 10 publications

Chemical Variation in Soil Fertirrigated With Effluent

Chemical Variation in Soil Fertirrigated With Effluent

A Study on the Projection of Drinking Water 2023-2033 in Dki Jakarta Indonesia

Analysis of the Potential for Reusing Sanitary Effluents in the Hydrographic Basin of the Ipojuca River

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