The Assessment of Using the Sewage Sludge in Agriculture in Romania

Balanica, Carmelia Mariana Dragomir; Simionescu, Aurel Gabriel; Birsan, Iulian Gabriel; Bichescu, Cezar Ionut; Munteniță, Cristian

doi:10.37358/mp.18.4.5104

Cited by 3 publications

(3 citation statements)

References 9 publications

(9 reference statements)

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“…In general, sewage sludge produced in Romania contains heavy metals, but far below the maximum limit allowed for use in agriculture. Balanica et al, 2018 [ 19 ] showed that the content of heavy metals in sludge from five sewage treatment plants from South of Romania Giurgiu, Calarasi, Braila, Galati and Tulcea is below the maximum allowed limit. Ailincai et al, 2012 [ 20 ] showed that the two-year application of 30 t/ha of sludge from the sewage treatment plant in Iasi on an arable land in the Moldavian Plateau contributed to an improvement in soil properties through an increase in the organic carbon content from soil by 4.6 g/kg (28%), compared to the unfertilized variant.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Municipal Biosolids on the Growth, Physiology and Synthesis of Phenolic Compounds in Ocimum basilicum L.

Lobiuc,

Stoleru,

Gheorghiţă

et al. 2023

IJMS

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The continuous development of drinking water networks is leading to the production of increasing amounts of waste water and sewage sludge. Secondary-treated sewage sludge is called biosolids and can be used as fertilizers in agriculture due to its rich nutrient content. The aim of this study was to evaluate the effects of biosolids mixed with an eroded soil on the morphology, physiology and synthesis of bioactive compounds in basil. The study was performed in pots under laboratory-controlled conditions. In total, four substrates were tested: S1 biosolids 100%, S2 biosolids 15% + eroded soil 85%, S3 eroded soil 100% and S4 control (commercial growing substrate). At the morphological level, a significant increase in plant height, number of branches, fresh biomass and dry biomass was found in the S2 variant. At the physiological level, photosynthesis and chlorophyll content did not vary significantly, but the quantum yield of PSII (ΦPSII) was significantly higher at S1 and S2. The oxidative status evaluated by determining the activity of SOD, POD and CAT enzymes was better in S2 and S3 compared to S3. Regarding the synthesis of bioactive compounds (rosmarinic acid, caffeic acid and gallic acid), it was stimulated in S1 and S2. In conclusion, biosolids application stimulated the stress response mechanisms in basil plants by increasing the quantum yield chlorophyll fluorescence and catalase activity, alleviating the negative effects of eroded soil.

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Section: Discussionmentioning

confidence: 99%

The Effect of Municipal Biosolids on the Growth, Physiology and Synthesis of Phenolic Compounds in Ocimum basilicum L.

Lobiuc,

Stoleru,

Gheorghiţă

et al. 2023

IJMS

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“…However, sewage sludge could contain toxic chemicals for the environment. Experimental analysis of heavy metals' concentration in sewage sludge resulting from Galati urban WWTPs showed values below national limits [65]. Such investigations are necessary to detect and monitor potential risks associated with agriculture applications.…”

Section: Sustainable Wastewater Treatment Facilities and Water Resource Usagementioning

confidence: 99%

Sustainable Alternative Routes versus Linear Economy and Resources Degradation in Eastern Romania

Mihai

Minea

2021

Sustainability

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This paper reveals the linear economy contribution to resource degradation and environmental pollution in eastern Romania that could further feed environmental crimes and conflicts, such as in the Pungesti shale gas case. Preservation of material and water resources in the region is required through various circular mechanisms under a cross-sectoral approach including solid waste as a material resource for industry and agriculture; wastewater treatment and water reuse; composting and organic agriculture; and using renewables. Six non-conflictual sustainable alternative routes related to circular economy mechanisms, water preservation, and to the clean energy transition are proposed in this paper, which are further examined through key statistics and indicators, current best practices, and local development pathways in both urban and rural communities.

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“…Therefore, their chemistry and composition determine the potential usage of the sludge or disposal prerequisites (Praspaliauskas & Pedisius, 2017). The sewage sludge collected from non-industrial hinterlands can be recycled back to the agricultural lands more safely in terms of heavy metal contaminants and can be treated as valuable sources of plant nutrients and soil conditioner (Balanica et al, 2018;Sharma et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Short-term residual effect of municipal sewage sludge on the soil properties and potato yield

Keçeci¹,

Usul²,

GÜCDEMİR³

et al. 2022

Soil Studies

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Sewage sludge (SS) is one of the significant wastes of modern city lifestyle with environmental consequences. This study was conducted to determine the effect of the municipal sewage sludge on the potato plant’s yield and nutrient elements and heavy metals content in a clay loam textured calcareous soil. The field treatment (corn-wheat-potato rotation) was implemented as fixed randomized blocks with 3 replications. The treatments were: control (without fertilizer), optimum fertilizer (OCF), 20, 40, 80, 100, and 120 ton ha-1 SS incorporation. The third-year results regarding the potato cultivation were presented. Results indicated that 4 ton ha-1 SS treatment resulted in a greater yield than the optimum fertilizer. The sewage sludge influenced the mineral nutrient composition of the leaves and the roots and the heavy metal concentrations in the plants were below the Turkish legal threshold values. Excessive application of SS had an inverse effect on the yield and reduced the essential nutrient concentrations of the leaves of the potato plants. This suggested that the residual effects of SS in the third year were considerable for either heavy metal concentrations or plant nutrients in the soil. Therefore, it can be concluded that a site-specific determination of the SS application rate is required to avoid potential deleterious effects of SS.

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The Assessment of Using the Sewage Sludge in Agriculture in Romania

Cited by 3 publications

References 9 publications

The Effect of Municipal Biosolids on the Growth, Physiology and Synthesis of Phenolic Compounds in Ocimum basilicum L.

The Effect of Municipal Biosolids on the Growth, Physiology and Synthesis of Phenolic Compounds in Ocimum basilicum L.

Sustainable Alternative Routes versus Linear Economy and Resources Degradation in Eastern Romania

Short-term residual effect of municipal sewage sludge on the soil properties and potato yield

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