Sludge performance in coagulation-flocculation treatment for suspended solids removal from landfill leachate using Tin (IV) chloride and Jatropha curcas

2021 ◽  
pp. 1-15
Author(s):  
Sharifah Farah Fariza Syed Zainal ◽  
Hamidi Abdul Aziz ◽  
Fatehah Mohd Omar ◽  
Motasem Y.D. Alazaiza
Keyword(s):  
Landfill Leachate ◽  
Jatropha Curcas ◽  
Suspended Solids ◽  
Solids Removal

scholarly journals Analysis of suspended solids and Glyphosate and efficacy of the cross-compliance standard 5.2 ‘buffer strips’ in the protection of superficial water from suspended solids in runoff conveyed through a vineyard

2015 ◽  
Vol 10 (1s) ◽  
Author(s):  
Bruno Boz ◽  
Giuseppina Pipitone ◽  
Bruna Gumiero ◽  
Paolo Bazzoffi ◽  
Luigi Sansone
Keyword(s):  
Surface Runoff ◽  
Suspended Solids ◽  
Buffer Zone ◽  
Annual Rainfall ◽  
Buffer Strips ◽  
Monitoring Study ◽  
Herbaceous Buffer ◽  
Solids Removal ◽  
Cross Compliance

Several studies have described the effectiveness of vegetated buffer strips, interposed between the cultivated areas and water bodies, in removal of suspended solids and other pollutants such as Glyphosate conveyed through surface runoff. This monitoring study has quantified the effects of a 5-metre wide herbaceous buffer zone, adjacent to a vineyard, built according to the Standard 5.2 of Cross-compliance (M.D. 27417). The amount of runoff generated was 3.9% of the total annual rainfall, with negligible differences in terms of volume after flowing through the buffer zone. The effectiveness of the buffer zone in suspended solids removal was, in terms of mass balance, of 45.5%. The glyphosate outputs from the vineyard, unlike in other experiences, were negligible and therefore it was not possible to evaluate the efficiency of the buffer zone in removing it. This is due to the low rainfall occurred in the period following distribution that has favoured <em>in situ</em> degradation of Glyphosate.

scholarly journals Effect of sedimentation time on the granulometric composition of suspended solids in the backwash water from biological activated carbon filters

2018 ◽  
Vol 44 ◽  
pp. 00072
Author(s):  
Małgorzata Komorowska-Kaufman ◽  
Filip Ciesielczyk ◽  
Alina Pruss ◽  
Teofil Jesionowski
Keyword(s):  
Activated Carbon ◽  
Granulometric Composition ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Particle Sizes ◽  
Filtration Time ◽  
Biological Activated Carbon ◽  
Percentage Volume ◽  
Solids Removal ◽  
Sedimentation Time

The paper presents the results of analyzes of the granulometric composition of suspended solids in backwash water from biological activated carbon (BAC) filters and its changes during sedimentation. Backwash water samples were taken during backwashing of two pilot filters after different filtration time. It was found that regardless of the concentration of suspended solids in the collected backwash water, particle sizes vs. their percentage volume contributions for all samples were similar. Particle sizes were in the range of 2–100 μm. However, the two-hour sedimentation for most of the samples proved to be effective (total suspended solids removal up to 93%), which is caused by self-coagulation of the sample.

scholarly journals Solids Removal Efficiency of a Sedimentation Tank in a Peri-Urban Catchment

2020 ◽  
Vol 12 (17) ◽  
pp. 7196 ◽  
Author(s):  
Salvatore Falco ◽  
Giuseppe Brunetti ◽  
Giovanna Grossi ◽  
Mario Maiolo ◽  
Michele Turco ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Surface Runoff ◽  
Suspended Solids ◽  
Southern Italy ◽  
Treatment Efficiency ◽  
Urban Catchment ◽  
Sedimentation Tank ◽  
Basin Surface ◽  
Different Grain Size ◽  
Solids Removal

At the outlet of the Vermicelli catchment—a peri-urban area located in the campus of University of Calabria (Cosenza, Southern Italy)—a sedimentation tank is located, aiming at collecting the basin surface runoff and improve its quality. First, experimental results of the treatment effects are here presented and analyzed. In addition, a monitoring campaign was conducted in order to characterize the particles transported by surface runoff and to determine the treatment efficiency of the tank. The analysis showed the presence of a pollutant load in the surface runoff of the Vermicelli basin and provided information on its particle-size distribution (PSD). Results were considered in terms of the treatment efficiency of the sedimentation tank, showing a good overall removal efficiency value, together with a high variability of the removal sedimentation efficiency. This variability is mainly due to the different grain size of the suspended solids and the characteristics of the rainfall event.

Chemical Flocculation for Suspended Solids Removal at Remote Mine Sites

1984 ◽  
Vol 27 (5) ◽  
pp. 1332-1338
Author(s):  
J. S. Tapp ◽  
B. J. Barfield ◽  
M. L. Griffm
Keyword(s):  
Suspended Solids ◽  
Mine Sites ◽  
Solids Removal

Raw landfill leachate treatment using an electrocoagulation process with a novel rotating electrode reactor

2019 ◽  
Vol 80 (3) ◽  
pp. 458-465 ◽  
Author(s):  
Ahmed Samir Naje ◽  
Mohammed A. Ajeel ◽  
Isam Mohamad Ali ◽  
Hussein A. M. Al-Zubaidi ◽  
Peter Adeniyi Alaba
Keyword(s):  
Landfill Leachate ◽  
Suspended Solids ◽  
Treatment Process ◽  
Oxygen Demand ◽  
Neutral Medium ◽  
Leachate Treatment ◽  
Rotating Speed ◽  
Electrode Distance ◽  
Treatment Performance ◽  
Electrocoagulation Process

Abstract In this work, landfill leachate treatment by electrocoagulation process with a novel rotating anode reactor was studied. The influence of rotating anode speed on the removal efficiency of chemical oxygen demand (COD), total dissolved solids (TDS), and total suspended solids (TSS) of raw landfill leachate was investigated. The influence of operating parameters like leachate pH, leachate temperature, current, and inter-distance between the cathode rings and anode impellers on the electrocoagulation performance were also investigated. The results revealed the optimum rotating speed is 150 rpm and increasing the rotating speed above this value led to reducing process performance. The leachate electrocoagulation treatment process favors the neutral medium and the treatment performance increases with increasing current intensity. Furthermore, the electrocoagulation treatment performance improves with increasing leachate temperature. However, the performance reduces with increasing inter-electrode distance.

scholarly journals Total suspended solids removal by high gradient magnetic separation using steel wool at different location

2018 ◽  
Vol 250 ◽  
pp. 06004
Author(s):  
Nur Sumaiyyah Supian ◽  
Johan Sohaili ◽  
Shantha Kumari Muniyandi ◽  
Athirah Othman ◽  
Nur Suraya Kamsano
Keyword(s):  
Suspended Solids ◽  
Suspended Solid ◽  
Steel Wool ◽  
Physical Treatment ◽  
High Gradient Magnetic Separation ◽  
Contaminants Removal ◽  
Magnetic Strength ◽  
Treatment Procedures ◽  
Solids Removal ◽  
Environment Magnetism

Growing of mankind, society, science and technology in our world is reaching to higher level of human civilization. Therefore, a sustainable treatment procedures are required in order to prevent the consequences of growing civilized situation to the environment. Magnetism has been used as physical treatment for particles or contaminants removal from wastewater. In this experiment, comparison between locations of steel wool has been carried out in order to determine the highest suspended solid removal. Variables has been set such as magnetic strength was 1.4Tesla, flow rate was 1mL/s, 80 gram of steel wool and experiment took 24 hours of circulation time and data recorded for 24 hours. Data were recorded involving control, non-inverted magnet and inverted magnet structure. Non-inverted magnets consists of magnets on same poles while inverted magnet on different poles. As a result, steel wool located inside of pipe was exhibited the highest removal (88.2%) compared to outside of the pipe (83.3%) and both occurred in inverted magnet structure. Therefore, it was indicated that longer exposure time to magnet resulted in greater improvement in removing pollutant. The results obtained and suggests that steel wool located inside of tube with inverted magnet position can be successfully treat wastewater effectively.

scholarly journals Co-treatment of old landfill leachate and municipal wastewater in sequencing batch reactor (SBR): effect of landfill leachate concentration

2016 ◽  
Vol 51 (4) ◽  
pp. 377-387 ◽  
Author(s):  
Kshitij Ranjan ◽  
Shubhrasekhar Chakraborty ◽  
Mohini Verma ◽  
Jawed Iqbal ◽  
R. Naresh Kumar
Keyword(s):  
Removal Efficiency ◽  
Landfill Leachate ◽  
Suspended Solids ◽  
Sequencing Batch Reactor ◽  
Municipal Wastewater ◽  
Batch Reactor ◽  
Operating Conditions ◽  
Volume Index ◽  
Turbidity Removal ◽  
Mixed Liquor

Sequencing batch reactor (SBR) was assessed for direct co-treatment of old landfill leachate and municipal wastewater for chemical oxygen demand (COD), nutrients and turbidity removal. Nitrogen removal was achieved by sequential nitrification and denitrification under post-anoxic conditions. Initially, SBR operating conditions were optimized by varying hydraulic retention time (HRT) at 20% (v/v) landfill leachate concentration, and results showed that 6 d HRT was suitable for co-treatment. SBR performance was assessed in terms of COD, ammonia, nitrate, phosphate, and turbidity removal efficiency. pH, mixed liquor suspended solids, mixed liquor volatile suspended solids (MLVSS), and sludge volume index were monitored to evaluate stability of SBR. MLVSS indicated that biomass was able to grow even at higher concentrations of old landfill leachate. Ammonia and nitrate removal efficiency was more than 93% and 83%, respectively, whereas COD reduction was in the range of 60–70%. Phosphate and turbidity removal efficiency was 80% and 83%, respectively. Microbial growth kinetic parameters indicated that there was no inhibition of biomass growth up to 20% landfill leachate. The results highlighted that SBR can be used as an initial step for direct co-treatment of landfill leachate and municipal wastewater.

scholarly journals Model of Suspended Solids Removal in the Primary Sedimentation Tanks for the Treatment of Urban Wastewater

Water ◽  
2017 ◽  
Vol 9 (6) ◽  
pp. 448 ◽  
Author(s):  
Margarita Jover-Smet ◽  
Jaime Martín-Pascual ◽  
Arturo Trapote
Keyword(s):  
Suspended Solids ◽  
Urban Wastewater ◽  
Solids Removal
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