Treatment of kitchen wastewater using <i>Eichhornia crassipes</i>

Parwin, Rijwana; Paul, Kakoli Karar

doi:10.1051/e3sconf/20183402033

Cited by 9 publications

(6 citation statements)

References 9 publications

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“…However, a reduction of 26% for TDS was reported by Moyo et al [26] during the treatment of polluted river water using EC. Similarly, Parwin and Paul [13] observed 67.72% and 69.97% reduction in TDS in control and EC, respectively. KWW especially from educational, professional organizations and restaurants is rich in oil and grease.…”

Section: Resultsmentioning

confidence: 67%

“…2, TOC showed a good reduction of 38.81% for EC 1 and 39.68% for EC 2 , whereas 35.31% for control in 21 days. In a study conducted by Parwin and Paul [13] after 8 days of the retention time, the removal efficiency of TOC was 15.38% and 13.67% for EC and control, respectively. Rezania et al [15] found a 45% reduction of TOC in 12 days of the experiment.…”

Section: Resultsmentioning

confidence: 98%

“…EC 1 and EC 2 showed ammonium nitrogen reduction efficiency of 90.81% and 93.24%, respectively, in 15 days. Parwin and Paul [13] observed good reduction efficiency (60.28%) in ammonium nitrogen while treating raw KWW using EC for 8 days. Rezania et al [16] found reduction efficiency of 95% for ammonium nitrogen, 92% for BOD 5 , 78% for chemical oxygen demand and 62% for TSS during treatment of domestic wastewater using EC.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, proper maintenance is required at a certain interval of time. In our earlier study, EC was used for 8 days for treatment of KWW, but this is not focused on more retention period [13].…”

Section: Introductionmentioning

confidence: 99%

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Efficiency of Eichhornia crassipes in the treatment of raw kitchen wastewater

Parwin

Paul

2019

SN Appl. Sci.

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The present water crisis mandates the reuse of wastewater for non-potable purpose. In this study, raw kitchen wastewater (KWW) was treated using Eichhornia crassipes, as a low-cost and eco-friendly remediation method. The advantage of Eichhornia crassipes is quick and high efficiency for removal of pollutants from wastewater. It was found that during characterization of raw KWW, the value of pH and the concentration of nitrate nitrogen and ammonium nitrogen were exceeding the permissible limit for irrigation water quality. A field experiment was conducted for 21 days, and the physicochemical parameters were monitored at 3 days of interval. After treatment, the concentration of nitrate nitrogen and ammonium nitrogen reduced to 97.79% and 92.03%, respectively, within 15 days, whereas the pH value increased from 4.3 to 6.67. It was found that Eichhornia crassipes showed good reduction efficiency for BOD 5 (77.23%), ammonium nitrogen (92.03%), total organic carbon (39.24%) and total suspended solids (95.94%) as compared to control (KWW sample without Eichhornia crassipes). An increase of 50% biomass of Eichhornia crassipes was observed at the end of the experiment. The study found that the treated KWW can be reused for irrigation purpose as it satisfied irrigation standard guidelines.

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Section: Resultsmentioning

confidence: 67%

Section: Resultsmentioning

confidence: 98%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficiency of Eichhornia crassipes in the treatment of raw kitchen wastewater

Parwin

Paul

2019

SN Appl. Sci.

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“…For treatment system efficiency, the percentage removal efficiency (%) of the pilot-scale treatment system was calculated for each of the wastewater parameters based on the mass flow difference between the effluent and influent relative to the influent [ 68 ].

where Ci = concentration of waste material in influent and Ce = concentration of waste material in effluent.…”

Section: Methodsmentioning

confidence: 99%

Integrated Methods for Household Greywater Treatment: Modified Biofiltration and Phytoremediation

Waqkene¹,

Mereta

Terfe

et al. 2023

Journal of Environmental and Public Health

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Most countries around the world have experienced water scarcity in recent decades as fresh water consumption has increased. However, untreated wastewater is routinely discharged into the environment, particularly in developing countries, where it causes widespread environmental and public health problems. The majority of wastewater treatment method publications are heavily focused on high-income country applications and, in most cases, cannot be transferred to low and middle-income countries. An experimental study was conducted to evaluate the performance efficiency of pilot-scale physicochemical and biological treatment methods for the treatment of household greywater in Jimma, Ethiopia. During the experiment, grab samples of greywater were taken from the combined treatment system’s influent and effluent every 7 days for 5 weeks and analyzed within 24–48 hours. Temperature, DO, EC, turbidity, TDS, and pH were measured on-site, while BOD, COD, TSS, TP, TN PO4−3-P, NO3-N, NH4-N, Cl−, and FC were determined in the laboratory. During the five-week pilot-scale combined treatment system monitoring period, the combined experimental and control system’s mean percentage reduction efficiencies were as follows: turbidity (97.2%, 92%), TSS (99.2%, 97.2%), BOD5 (94%, 57.4%), COD (91.6%, 54.7%), chloride (61%, 35%), TN (68.24, 42.7%), TP (71.6%, 38.7%), and FC (90%, 71.1%), respectively. Similarly, the combined experimental and control systems reduced PO4−3-P (12.5 ± 3 mg/L), NO3-N (4.5 ± 3 mg/L), and NH4-N (10.19 ± 2.6 mg/L) to PO4−3-P (3.5 ± 2.6 mg/L, 7.5 ± 1.6 mg/L), NO3-N (0.8 ± 0.5, 3.6 ± 2.3 mg/L), and NH4-N (7 ± 2.9 mg/L, 15.9 ± 3.9 mg/L), respectively. From the biofiltration and horizontal subsurface flow constructed wetland combined systems, the experimental combined technology emerged as the best performing greywater treatment system, exhibiting remarkably higher pollutant removal efficiencies. In conclusion, the combined biofiltration and horizontal subsurface flow constructed wetland treatment system can be the technology of choice in low-income countries, particularly those with tropical climates.

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Sustainable ternary treatment system for greywater and potential reuse

et al. 2022

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Adopting a greywater treatment system that provides economical, effective, and sustainable treated greywater over a longer span helps to address water scarcity. The present study focuses on treating greywater generated from hostels using a floating plant treatment system (FPTS) planted with water hyacinth. The additional units, a sand filter and an activated charcoal filter, were attached in series to FPTS to improve the treated greywater quality. The treatment system was operated for 90 days with daily monitoring of influent and effluent parameters. The treatment performance was evaluated based on the removal efficiency for total suspended solids (TSS), turbidity, chemical oxygen demand (COD), ammonia, sulphate, phosphate, and faecal coliform (FC) of 74.81% ± 5.74%, 99.76% ± 0.05%, 95.70% ± 4.10%, 99.16% ± 2.08%, 48.22% ± 1.80%, and 100%, 97.27% ± 1.48%, respectively. The study showed that the system effectively treats greywater, making it suitable for non‐potable purposes on educational institution's campuses.

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Treatment of kitchen wastewater using Eichhornia crassipes

Cited by 9 publications

References 9 publications

Efficiency of Eichhornia crassipes in the treatment of raw kitchen wastewater

Efficiency of Eichhornia crassipes in the treatment of raw kitchen wastewater

Integrated Methods for Household Greywater Treatment: Modified Biofiltration and Phytoremediation

Sustainable ternary treatment system for greywater and potential reuse

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