Rhizosphere dynamics during phytoremediation of olive mill wastewater

Bodini, Sergio F.; Cicalini, Anna Rita; Santori, Francesca

doi:10.1016/j.biortech.2010.12.091

Cited by 29 publications

(13 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Moreover, these rates continued until late August probably following the decreasing trend of phenol concentration in the storage pond and the stimulated phenols biodegradation processes. Previous studies report changes in the composition of soil microorganisms [7,15,33] and enzymes activities [13,34] involved in phenol degradation, indicating that OMW may favor soil microorganisms and activities specialized to degradation of phenolic compounds. Similarly to our study, under field conditions, it has been reported significant reduction of phenols, described by a first order kinetics with the constant value (K) to range from −0.014 to −0.018 per day [3].…”

Section: Discussionmentioning

confidence: 97%

“…Such an organic fraction, having also high C/N ratio, stimulates the indigenous heterotrophic microorganisms inducing organic matter mineralization [7,13,15]. COD concentration in soil solution decreased gradually until late the second application period (September) probably following the pattern of COD content in the applied OMW.…”

Section: Discussionmentioning

confidence: 99%

“…In addition to biodegradation part of the applied organic substrate and nutrients may be retained into the soil matrix [9,10], leading to enhancement of soil fertility [6,7,11,12]. Also, OMW application may cause alterations in soil biological properties [7,[13][14][15][16] associated with the changing nutrient availabilities and/or toxicity phenomena. With regard to physical properties of soil, there is evidence of changes due to OMW application, but the results so far are contradictory [6,17,18].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Land Application-Based Olive Mill Wastewater Μanagement

Kapellakis

Tzanakakis²,

Angelakιs

2015

Water

View full text Add to dashboard Cite

Land application of olive mill wastewater (OMW) is considered a promising low-cost practice for olive-oil producing countries. The objectives of this work were to investigate: (i) OMW treatment potential of a land treatment system (LTS), planted with a E. camaldulensis species, regarding N, P, C, and phenols; (ii) the effects of OMW on chemical properties of soil and soil solution characteristics; and (iii) the performance of E. camaldulensis in terms of biomass production and N and P recovery. E. camaldulensis received OMW for two growing seasons at rates based on maximum organic loading. These rates were almost equivalent to the reference evapotranspiration of the area. Soil solution and soil samples were collected from three different depths (15, 30 and 60 cm) at specified time intervals. -Also, samples of plant tissues were collected at the end of application periods. OMW land application resulted in significant reduction in inorganic and organic constituents of OMW. At 15 cm of soil profile, the average removal of COD, TKN, NH4 + -N, TP, In-P, and total phenols approached 93%, 86%, 70%, 86%, 82%, and 85%, respectively, while an increase in soil depth (30 and 60 cm) did not improve significantly treatment efficiency. Furthermore, OMW increased soil organic matter (SOM), total kjeldahl nitrogen (TKN), and available P, particularly in the upper soil layer. In contrast, low inorganic N content was observed in the soil throughout the study period caused probably by increased competition among soil microorganisms induced by the organic substrate supply and high C/N ratio. Also, electrical conductivity (EC) and SAR OPEN ACCESSWater 2015, 7 363 increased by OMW addition, but at levels that may do not pose severe risk for soil texture. Enhancement of soil fertility due to OMW application sustained eucalyptus trees and provided remarkable biomass yield. In conclusion, land application of OMW has a great potential for organic matter and phenol assimilation and can be effectively used for OMW detoxification.

show abstract

Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Land Application-Based Olive Mill Wastewater Μanagement

Kapellakis

Tzanakakis²,

Angelakιs

2015

Water

View full text Add to dashboard Cite

show abstract

“…To reduce the accumulation of phenolic compounds, several researchers investigated the potential of selected plants on directly assimilating and degrading these pollutants and indirectly promoting biodegradation by soil microorganisms. Bodini and Santori [11] reported that perennial tree species such as Cupressus sempervirens and Quercus ilex can reduce more than 90% phenol by the end of OMW 6-month irrigation cycle, of which the high efficiency is due to the stimulation of specific microbial populations in rhizosphere soil. Besides trees, grasses have been reported for the ability to detoxify phenol, for example, Vetiveria zizanioides (L.) Nash along with their rhizosphere bacteria can degrade 500 mg/L phenol in illegal dumped industrial wastewater after growing on a floating platform in aerated tank [12].…”

Section: Introductionmentioning

confidence: 99%

Phenolic compounds removal by grasses and soil bacteria after land application of treated palm oil mill effluent: A pot study

Phonepaseuth

Rakkiatsakul

Kachenchart

et al. 2018

Environmental Engineering Research

View full text Add to dashboard Cite

Land application of treated palm oil mill effluent (TPOME) could be used as an alternative tertiary wastewater treatment process. However, phenolic compounds in TPOME might be leached to the environment. This study investigated the ability of grasses on reducing phenolic compounds in the leachate after TPOME application. Several pasture grasses in soil pots were compared after irrigating with TPOME from stabilization ponds, which contained 360-630 mg/L phenolic compounds. The number of soil bacteria in planted pots increased over time with the average of 10 8 CFU/g for mature grasses, while only 10 4-10 6 CFU/g were found in the unplanted control pots. The leachates from TPOME irrigated grass pots contained lower amounts of phenolic compounds and had lower phytotoxicity than that of control pots. The phenol removal efficiency of grass pots was ranged 67-93% and depended on grass cultivars, initial concentration of phenolic compounds and frequency of irrigations. When compared to water irrigation, TPOME led to an increased phenolic compounds accumulation in grass tissues and decreased biomass of Brachiaria hybrid and Brachiaria humidicola but not Panicum maximum. Consequently, the application of TPOME could be conducted on grassland and the grass species should be selected based on the utilization of grass biomass afterward.

show abstract

“…The main objectives of the RBMP include the prevention of further deterioration of water resources and the promotion of sustainable water use that ensures the progressive reduction of pollution (Bodini et al, 2011). An integrated catchment management approach underpins a risk-based land management framework to all activities within a spatial land-use planning framework (Fiorentino et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Development of GIS Based Method for Risk Assessment of Olive Mill Waste Water in Crete, Greece

2017

Global NEST Journal

View full text Add to dashboard Cite

Water resources are subjected to different pollution sources. Point source water pollution of surface water is an important issue when considering the limited surface water availability as well as the potential knock-on effects of this pollution on human health as well as habitat and land degradation. One of the main point sources of water pollution is Olive Mill Waste Water (OMWW). OMWW is the liquid by-product generated during olive oil production. However, there is no standardized method to assess the risk of water pollution by OMWW for any given river basin. This research addressed the above issue by designing a detailed quantitative risk assessment methodology, which utilizes Geographic Information System (GIS) modeling to classify within a watershed individual sub-catchment risk of water pollution occurring from olive mill waste discharges. The research presents the proposed criteria and calculations required to estimate sub-catchment risk significance and comments on the potential of the method for wider application. This research combines elements from risk assessment frameworks, Multi-Criteria Analysis (MCA), and GIS. MCA helped in aggregating different aspects and elements associated with this environmental problem, while GIS modeling tools helped in obtaining many criterion values and providing insight into how different objects interact in nature and how these interactions influence risk at the watershed level. The proposed method was tested in the Keritis watershed in Crete, Greece, where OMWW is one of the main stressors influencing water quality, and the results indicated that this method has the potential to be a useful guide to prioritize risk management actions and mitigation measures to be incorporated in River Basin Management Plans.

show abstract

Rhizosphere dynamics during phytoremediation of olive mill wastewater

Cited by 29 publications

References 29 publications

Land Application-Based Olive Mill Wastewater Μanagement

Land Application-Based Olive Mill Wastewater Μanagement

Phenolic compounds removal by grasses and soil bacteria after land application of treated palm oil mill effluent: A pot study

Development of GIS Based Method for Risk Assessment of Olive Mill Waste Water in Crete, Greece

Contact Info

Product

Resources

About