scholarly journals Wastewater treatment using adsorption process in column for agricultural purposes

2019 ◽  
Vol 14 (1) ◽  
pp. 1
Author(s):  
Flávia Rhuana Pereira Sales ◽  
Reynaldo Borges Galvão Serra ◽  
Gesivaldo Jesus Alves de Figueirêdo ◽  
Paulo Henrique Almeida da Hora ◽  
Antonio Cícero de Sousa
Keyword(s):  
Adsorption Process ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Kinetic Effect ◽  
Chemical Parameters ◽  
Quantitative Investigation ◽  
Isothermal Model ◽  
Qualitative And Quantitative ◽  
Physical And Chemical

Water is essential for life, important for the ecosystem and it is in great demand due to its scarcity. This study explored the reuse of the wastewater of the Water Treatment Plant in Gramame for agricultural purposes. A qualitative and quantitative investigation of the effluent was carried out through the characterization of its physical and chemical parameters, comparing the results to what is allowed by the current legislation, CONAMA Resolution 357/2005. After this process, the activated charcoal of coco-da-baia mesocarp, adsorbent material, was prepared and tested in a filter system in a column with a continuous flow and ascendant entrance, in which the kinetic effect was evaluated. This technique was evaluated by correlating the reduced values in the adsorption material, respecting the initial effluent concentration, obtaining a reduction of 50% in the hardness, 87.5% in chloride and 66.6% in acidity. These results verified the adequacy of the technique in potential hydrogenation (pH) and abrupt reduction of color and turbidity. This treatment is suggested to qualify the effluent for use in agricultural, safe for humans and the environment. The adsorbent substrate efficiency was verified by correlating it with the Thomas isothermal model.

scholarly journals Perbandingan Kebutuhan Koagulan Al2(So4)3 dan PAC Untuk Pengolahan Air Bersih Di WTP Sungai Ciapus Kampus IPB Dramaga

2018 ◽  
Vol 18 (2) ◽  
pp. 75
Author(s):  
Pasca Eka Prasetya ◽  
Satyanto Krido Saptomo
Keyword(s):  
Water Quality ◽  
Aluminum Sulfate ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Optimum Dose ◽  
Water Quality Standards ◽  
Chemical Parameters ◽  
Average Value ◽  
Physical And Chemical ◽  
Better Than

Water Treatment Plant (WTP)  IPB process water from Ciapus River by water purifying process before distributed to consumers. The type of coagulant used is Al2(SO4)3 (aluminum sulfate) or alum and Polyaluminium Chloride (PAC). This study aimed to compare the water quality by using coagulant Al2(SO4)3  and PAC in WTP Ciapus River IPB Dramaga and to find out the optimum dosage of coagulant alum and PAC . This study used a test jar method and ISO (SNI) for the analysis of physical and chemical parameters of water. Based on the results of research, PAC was better than alum with the optimum dose of 20 ppm which produces 0.22 NTU of turbidity, 1 mg/l of TSS and 150 mg/l of TDS. While the optimum dose of alum was 20 ppm which generates 0.49 NTU of turbidity, 0 mg/l of TSS and 164 mg/l of TDS. Average costs for the use of coagulant alum and PAC were Rp. 95/m3 and Rp 215/m3, while the average value of the efficient used of coagulant alum and PAC were 91.34% and 83%. The results of both coagulants meets the criteria of water quality standards in accordance with Regulation of the Minister of Health No. 429 of 2010.

scholarly journals The Efficiency of Microstrainers Filtration in the Process of Removing Phytoplankton with Special Consideration of Cyanobacteria

Toxins ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 285 ◽  
Author(s):  
Wanda Czyżewska ◽  
Marlena Piontek
Keyword(s):  
Water Treatment ◽  
Surface Water ◽  
Treatment Plant ◽  
Water Treatment Plant ◽  
Filtration Process ◽  
Particle Filtration ◽  
Qualitative And Quantitative ◽  
Water Treatment Process ◽  
Adverse Impacts ◽  
Quantitative Monitoring

The research presented in this manuscript concerns the evaluation of the effectiveness of microstrainers, which are designed to reduce the amount of plankton in treated surface water. The efficiency of microstrainer filtration analysis is very important for the proper course of the water-treatment process not only in the Water-Treatment Plant (WTP) in Zielona Góra (central western Poland) but also in other WTPs around the world. The qualitative and quantitative monitoring of the abundance of plankton including cyanobacteria during the particle-filtration process allows not only for the assessment of the potential cyanotoxic risk in surface water providing a source of drinking water, but also allows the evaluation of the action and the prevention of adverse impacts of microstrainers. Over four years of research, it was observed that the largest amount of cyanobacteria before microstrainer filtration took place in May. The dominant species was Limnothrix redeckei. The microstrainer removal of plankton and cyanobacteria was statistically significant. The quantity of removed plankton increased with its increasing content in raw water. The particle-filtration process, by reducing the amount of cyanobacteria, contributes to a decrease in intracellular microcystins.

Detailed experimental and numerical characterization of turbulent flow in components of a water treatment plant

2019 ◽  
Vol 80 (11) ◽  
pp. 2117-2130
Author(s):  
Ivan Matías Ragessi ◽  
Carlos Marcelo García ◽  
Santiago Márquez Damián ◽  
Cecilia Pozzi Piacenza ◽  
Mariano Ignacio Cantero
Keyword(s):  
Water Treatment ◽  
Turbulent Flow ◽  
Treatment Plant ◽  
Acoustic Doppler Current Profiler ◽  
Water Treatment Plant ◽  
Mean Flow ◽  
Cross Sectional ◽  
Flow Recirculation ◽  
Hydraulic Design

Abstract This paper presents a detailed characterization of turbulence in the incoming flow to the clarification component of a water treatment plant, ‘Los Molinos’ (Córdoba, Argentina). The main problems were related to the presence of turbulent flow patterns throughout the treatment, affecting the proper development of the physical processes required for water clarification. Namely: (a) a poor hydraulic design that could produce a non-homogeneous spatial distribution of the flow, recirculation zones and flow stagnation, and a non-uniform discharge distribution among the sedimentation units as a result of different cross-sectional dimensions of the transverse-channel, and (b) high turbulence intensity that affect the flocs' size as well as the efficiency of the settling tanks and filters. Firstly, a detailed in-situ experimental characterization of the turbulent flow was undertaken. An acoustic Doppler velocimeter (ADV) was used to characterize the flow turbulence, whereas for discharge measurements and mean flow velocity field an acoustic Doppler current profiler (ADCP) was employed. Secondly, a numerical model, based on the Reynolds-averaged Navier–Stokes (RANS) equations and the - turbulence closure model, was validated with the experimental data. Finally, based on the results, a diagnosis and recommendations were made for the optimization of the hydraulic design of the water treatment plant.

scholarly journals Decentralized wastewater treatment performance evaluation based on chemical and physical parameters at Bantul Regency, Yogyakarta

2019 ◽  
Vol 280 ◽  
pp. 03006
Author(s):  
Suphia Rahmawati ◽  
Andik Yulianto ◽  
Ahmad Traju Pangentas Wijayaningrat
Keyword(s):  
Wastewater Treatment ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
National Standard ◽  
Physical Parameters ◽  
Chemical Parameters ◽  
Oil And Grease ◽  
Physical And Chemical Parameters ◽  
Simple Technology ◽  
Physical And Chemical

Communal wastewater treatment plant (CWWTP) has been chosen as one system to treat domestic wastewater due to simple technology, flexible management, and cost-effectiveness. There are 376 CWWTP have been recorded by Environmental Agency of Yogyakarta (DLH DIY) that spread in five regencies. Monitoring results on CWWTP effluent showed that some physical and chemical parameters did not meet the domestic wastewater standard. Therefore, evaluation of removal efficiency in terms physical and chemical parameters are necessary. The samples were collected from nine CWWTP in Banguntapan, Bantul and Gamping sub-districts. The physical and chemicals parameters (pH, TSS, BOD, COD, Ammonia, oil, and grease) of influent and effluent from CWWTP are analyzed based on National Standard of Indonesia (SNI) for domestic wastewater. The results show that BOD (>70%) and TSS (>50%) have better removal effectiveness compare with COD, ammonia, oil, and grease (40%). Overall, CWWTP in Banguntapan subdistrict has better performance compare with CWWTP in Bantul subdistrict.

scholarly journals Application of Biochar to the Remediation of Pb-Contaminated Solutions

2018 ◽  
Vol 10 (12) ◽  
pp. 4440 ◽  
Author(s):  
Maria Boni ◽  
Agostina Chiavola ◽  
Simone Marzeddu
Keyword(s):  
Adsorption Process ◽  
Chemical Characterization ◽  
Complete Removal ◽  
Order Model ◽  
Equilibrium Conditions ◽  
Sem Images ◽  
Equilibrium Data ◽  
Pseudo Second Order ◽  
Physical And Chemical

BIOTON® biochar, produced by a wood biomass pyrolysis process, which is usually applied as soil amendment, was investigated for a novel application, i.e., the adsorption of lead from contaminated solutions. The experimental activity included physical and chemical characterization of BIOTON®; and Scanning Electron Microscope (SEM) images to highlight its internal structure. The adsorption process was investigated through batch and column experiments. Adsorption kinetics showed very rapid achievement of equilibrium conditions, i.e., 50 mg/L and 100 mg/L initial Pb concentration at 2 h and 4 h, respectively. Complete removal also occurred within the same time. The Brunauer–Emmett–Teller model was a better fit for the equilibrium data of both Pb concentrations, whereas the kinetics were best represented by the pseudo second-order model. Column tests showed that the addition of biochar as an adsorbent media within the bed significantly extended the time of breakthrough and exhaustion, with respect to the column filled with soil only. The values found for the adsorption capacity of BIOTON®- versus lead-containing solutions were comparable to those reported for commercial adsorbents. Therefore, BIOTON® can be considered a valid option: It also offers the additional benefit of allowing the recovery of a residue, which alternately would need to be disposed of.

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