Abstract
This work is carried out to evaluate the efficiency of the pilot scale integrated scheme which comprises of an Anaerobic Sequence Batch Reactor (AnSBR) reactor, Aerobic Sequence Batch Reactor (ASBR), and sand filter for the elimination of organic matter and nutrient in synthetic greywater. The treatment effectiveness of the pilot plant was identified based on its pollutant removal efficiency for 12 months. The AnSBR removes 49.64, 64.24, 55.35, 87.82, 54.36, 32.73, 72.61, 34.88, and 72.11% of Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Total Nitrogen (TN), anionic surfactant, Total Phosphorous (TP), Ammonium Nitrogen (NH4+-N), Total Suspended Solids (TSS), Nitrate Nitrogen (NO3--N) and sulphates, respectively. Moreover, the removal efficiencies are improved to 84.27, 86.04, 80.8, 95.13, 80.55, 90.23, 72.98, and 75.45%, respectively, in the ASBR with an additional aeration period. The removal efficiencies of COD, BOD, TN, anionic surfactant, TP, TSS, NH4+-N, NO3--N, and sulphates have been improved progressively to 89.12, 94.9, 85.15, 99, 86.98, 88.54, 93.52, 94.89, and 80.49%, respectively in the sand filter. In tracer studies, that a total of 29.3% of the salt has been remained in the reactor which suggests a good deal of salt of the integrated system. Furthermore, this hydrodynamic study discloses a moderately low volume (30.3%) for the integrated system with the mean residence time is lesser than theoretical hydraulic residential time. Based on these findings, it is evident that the integrated anaerobic-aerobic system bounded with the sand filter process accomplishes the achievement of efficiency.
Highlights
Global water shortage has been a principal issue over the years because of the population growth combination, increasing lifestyle standard, increased urbanization, nutritional changes, water resources mismanagement, and climate variations [1]
The daily sampling program was developed for collecting the synthetic greywater for identifying the features like physical and chemical
The Anaerobic Sequence Batch Reactor (AnSBR) process is utilized in this work for removing the anionic surfactants in the range as 84.6%
Summary
Global water shortage has been a principal issue over the years because of the population growth combination, increasing lifestyle standard, increased urbanization, nutritional changes, water resources mismanagement, and climate variations [1]. Characteristics of greywater fluctuate according to the consumer’s lifestyle, cultural and social behavior It has the lowest micro and macro contaminants compared to other wastewaters (e.g., black water). Treatments are employed for diminishing the contaminants level in the gravel previously reprocess or the final disposal They are impurity explicit that is applied to the ordinary process of wastewater treatment grouping including pre-treatment, essential, tertiary and optional treatment. The AnSBR process can enables the To compare the proposed greywater treatment design expulsion in an effective manner based on organic loads like with existing models. The anaerobic reduction needs further improvement and can be followed by an aerobic system [21]
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