Evaluation of various hydroponic techniques as decentralised wastewater treatment and reuse systems

Haddad, Marwan; Mizyed, Numan

doi:10.1080/00207233.2011.582701

Cited by 32 publications

(18 citation statements)

References 26 publications

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“…The gravel media hydroponics method of wastewater treatment played an important role in removing pollutants from wastewater [ 21 ]. Other studies also indicated removal efficiencies ranged from 47 to 91% for nutrients (nitrogen and phosphorus) using hydroponics planted with different plant species [ 22 – 24 ]. In addition to pollutant removal, hydroponics can help in growing biomass for value-added materials or energy which also attracts interest in the agro-processing industries [ 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

Suitability of nutrients removal from brewery wastewater using a hydroponic technology with Typha latifolia

et al. 2018

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BackgroundThis study aims to assess suitability of hydroponic technology for treatment of brewery wastewater in a hydroponic bioreactor using Typha latifolia. Triplicated hydroponic bioreactor treatment units were designed, constructed and operated at a hydraulic retention time of 5 days with different surface loadings and mean hydraulic loading rate 0.023 m3 m−2d− 1. Young T. latifolia shoots were collected in the vicinity of study site. Wastewater characteristics, plant growth and nutrient accumulation during experiment were analyzed as per APHA standard methods and nutrient removal efficiency was evaluated based on inlet and outlet values.ResultsT. latifolia established and grew well in the hydroponics under fluctuations of wastewater loads and showed a good phytoremedial capacity to remove nutrients. Significant removal efficiencies (p < 0.05) varied between 54 and 80% for Total Kjeldahl Nitrogen, 42 and 65% for NH4+ -N, 47 and 58% for NO3− -N, and 51 and 70% for PO43−-P. The system improved the removal up to 29% compared to control and produced biomass of 0.61–0.86 kg dry weight (DW) m− 2. Nutrients retained were up to 21.17 g N kg− 1 DW and 2.87 g P kg− 1 DW.ConclusionThe significant nutrients reduction obtained and production of biomass led us to conclude that hydroponics technology using T. latifolia has suitability potential for treatment of brewery wastewater and similar agro-industrial wastewaters. Thus it could be considered as a promising eco-friendly option for wastewater treatment to mitigate water pollution. Integration of treatment and production of biomass needs further improvement.

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Section: Introductionmentioning

confidence: 99%

Suitability of nutrients removal from brewery wastewater using a hydroponic technology with Typha latifolia

et al. 2018

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“…Currently, all areas in question are rain-fed; no irrigation infrastructure exists. However, the potential irrigation areas are located at higher elevations than the treatment plant sites, so would require effluent pumping [11]. From Nablus West WWTP the anticipated volume of treated wastewater at start up is 11,472 m3 per day in the year 2013.…”

Section: Agricultural Areas Land Usementioning

confidence: 99%

Simulation of trans boundary wastewater resource management scenarios in the Wadi Zomer watershed, using a WEAP model

Yaqob

Al-Sa’ed²,

Sorial

et al. 2014

IJBAS

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Water resource shortages are always a challenge for Middle Eastern countries in general and for the Palestinian Authority in particular. For over 20 years in Palestine, political factors and a lack of control over water resources have exacerbated the water problem there, seriously affecting water resources, in terms of quality and quantity. This research presents one of the applications of the Water Assessment and Planning (WEAP) model in the Nablus and Tulkarm watershed. The model is applied in evaluating and analyzing the existing balance and the role of treated wastewater and anticipates future scenarios for the management of water resources, taking into account the policies and operating the various factors that may affect the demand and the impact of treated wastewater on the water budget until 2035. The results showed that the amount of treated wastewater in the study area will reach 16 MCM by 2035. The agricultural sector needs 17 MCM and currently only 2.8 MCM are available from artesian wells. The results also showed that one of the reasons for not using treated wastewater is a lack of experience in the planning and selection of wastewater treatment plant sites and of the capacity to match these with agricultural land that could reuse the treated wastewater. Demand management and improvements in living standards are the prerequisites necessary for the proper management of available resources. The results confirmed that the WEAP program provides a solid foundation to assist planners in developing recommendations for the management of water resources in the future, through the detection of hot spots on which to work.

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“…The application of hydroponic systems is another approach that is rather more cost-effective and locally oriented approach for pollution control and re-aeration. These are small-scale floated plants provided with structural supports made of inert materials without being grown in soils (Haddad and Mizyed 2011). These are applicable for surface waters with low flow velocities or shear stress and are promising solutions for humid and tropical climates (Chua et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of surface water quality using trading discharge permits and artificial aeration

et al. 2015

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Water quality trading (WQT) is a strategy for surface water quality management. This study focused on finding the optimal waste load allocation by WQT framework based on the concentrations of BOD and dissolved oxygen (DO) in Sefidrud River. It also assessed the consequences of using artificial aeration on trading discharge permits. For these purposes, river was simulated by Qual2kw. Two checkpoints were considered for monitoring the upstream (Sangar) and downstream (Caspian). Sensitivity analysis was carried out to find the impact factors of each emission sources. The required total maximum daily loads (TMDLs) were determined through simulation results. It predicted that the concentrations of ultimate BOD in both Sangar and Caspian stations may decrease from 3.6 and 8.1 mg/L, respectively, to 2.1 mg/L. Conversely, DO may increase from 5.8 and 0.9 mg/L to 7 and 3.7 mg/L, respectively. This could solely save 7 % of total treatment costs in comparison with the conventional command and control (C&C) policy. WQT may increase the revenues to 21 %. However, this could not provide enough flexibility and robustness in regard to the permit pricing and profits attained by stakeholders. Artificial aeration was considered as an improvement solution in the second scenario. The experimental results of hydroponic systems and hydraulic river simulation by CCHE2D showed that 0.25 day -1 can be added to the aeration coefficients. This modified TMDLs and impact factors thoroughly. Results verified that this approach may increase the revenues of TMDLs and discharge permit market, respectively, to 17 and 30 %. Permits can also be sold with higher prices and stakeholders may attain considerable profits. Consequently, the integration of artificial aeration with WQT was recommended for surface water quality enhancement.

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Evaluation of various hydroponic techniques as decentralised wastewater treatment and reuse systems

Cited by 32 publications

References 26 publications

Suitability of nutrients removal from brewery wastewater using a hydroponic technology with Typha latifolia

Suitability of nutrients removal from brewery wastewater using a hydroponic technology with Typha latifolia

Simulation of trans boundary wastewater resource management scenarios in the Wadi Zomer watershed, using a WEAP model

Enhancement of surface water quality using trading discharge permits and artificial aeration

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