Reuse of water and sludge in agriculture: new technologies for the treatment

Abstract

The treatment and reuse of water in Brazil is one of the most discussed issues in the agricultural field. In recent years, the scarcity of water changes in the rainfall regime has impacted production. The management of water resources aims to make better use of one of the means that most uses water, agriculture. Reuse and treatment are essential through innovative technologies that corroborate better water efficiency to extract the maximum water capacity and avoid waste. In an increasingly sustainable scenario, which seeks cleaner environments, with little or no emission of pollutants and losses of water resources, the reuse and treatment or possible disposal in a correct way is always an object of study to achieve the effect in use. of water, seeking better production in crops and reducing environmental impacts. This work aims to analyze the historical evolution of technologies used to treat wastewater and sewage sludge. We can see that the theme has grown in recent years, and several technologies are emerging to improve water treatment more efficiently and effectively. Thus, we conclude that the reuse of wastewater and sewage sludge has a large field of study and application in agriculture.

Future of Sludge Management

“…The review identifies the potential for further expansion of sewage and sludge reuse in energy production and agricultural applications. In summary, the study provides insights into the global status of wastewater and sludge reuse, showcasing successful case studies and emphasizing the potential for increased utilization in various sectors [14].…”

“…Recent research highlights the benefits of using reclaimed water and sludge in agriculture, which includes reducing costs, creating a dependable local water supply, and promoting the circular economy. By adopting new treatment technologies, the agricultural sector can play a significant role in sustainable resource management and contribute to a more efficient and environmentally friendly approach to water and sludge management [14].…”

“…HC involves the gradual breakdown of activated sludge and the dissolution of dissolved organic matter using cavitation bubbles, which can also reduce the size of suspended sludge particles. Recent research has demonstrated the potential of HC in enhancing sewage sludge stabilization in both anaerobic and aerobic digestion units, making it easier to manage and dispose of [1,14,15]. This eco-friendly and cost-efficient pretreatment method shows promise in enhancing the reuse of sewage sludge for agricultural applications [5].…”

Reuse of Sewage Sludge as Organic Agricultural Products: An Efficient Technology-Based Initiative

“…Estimates suggest that Europe alone produce about 100 million tones of dry solids [6]. A range of techniques are currently accessible for the management of sludge, an important facet of which includes its utilization within the agricultural sector [7]. Te application of signifcant quantities of untreated sludge without proper control measures can lead to the infltration of heavy metals, phenolic compounds, and polycyclic aromatic compounds into the soil, groundwater, and adjacent water bodies, resulting in substantial alterations in soil fertility and harm to plant and animal life [8,9].…”