The impact of powdered keramsite on activated sludge and wastewater treatment in a sequencing batch reactor

Masłoń, Adam; Tomaszek, J. A.; Zamorska, Justyna; Zdeb, Monika; Piech, A.; Opaliński, I.; Jurczyk, Łukasz

doi:10.1016/j.jenvman.2019.02.035

Cited by 15 publications

(7 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… Miao et al (2015) reported that increasing the C/N ratio from 2.0 to 4.0 during landfill leachate treatment increased the nitrogen removal efficiency from 60 to 98%. Masłońa et al (2019) ascertained that reducing the organic loading rate in synthetic wastewater from 0.68 down to 0.52 kg COD m −3 day −1 led to a decrease in the organic carbon removal efficiency from 96.7 to 93.9% and that the best organic carbon loading rate was 0.62 kg COD m −3 day −1 . However, in this study, in the experiment with an organic loading rate of 2.58 kg COD m −3 day −1 (days 31–36), the TN, TP, and ammonium removal efficiencies were decreased compared to those observed at rates of 0.34 and 0.86 kg COD m −3 day −1 .…”

Section: Resultsmentioning

confidence: 99%

Removal of Nutrients From Anaerobically Digested Swine Wastewater Using an Intermittent Cycle Extended Aeration System

2020

View full text Add to dashboard Cite

Swine wastewater contains high concentrations of organic compounds, nutrients (nitrogen and phosphorus), heavy metals, and residual antibiotics, amongst others, that have negative impacts on the water environment. The main aim of this work was to remove nutrients from anaerobically digested swine wastewater using an intermittent cycle extended aeration system (ICEAS). The effects of operational parameters such as cycle time, organic loading rate, C/N ratio, and aeration/mixing ratio on the pollutant removal efficiencies of ICEAS were studied and compared with the performance of a conventional sequencing batch reactor (SBR). The following optimal conditions were obtained: cycle time, 6 h; organic loading rate, 0.86 kg COD m −3 day −1 ; C/N ratio, 2.49-2.82; and aeration/ mixing ratio, 1.57. The pH was maintained in the range of 6.0-8.0. The total organic carbon (TOC), total nitrogen (TN), ammonium (NH 4 +), total phosphorus (TP), and color removal efficiencies of ICEAS were higher than those of the conventional SBR, with removal

show abstract

Section: Resultsmentioning

confidence: 99%

Removal of Nutrients From Anaerobically Digested Swine Wastewater Using an Intermittent Cycle Extended Aeration System

2020

View full text Add to dashboard Cite

show abstract

“…A slight increase in pH from 7.56 to 7.69 was also noted. Expanded clay also has the ability to improve the sedimentation of activated sludge and biogranulation in a granular sequencing batch reactor [102][103][104].…”

Section: Man-made Materialsmentioning

confidence: 99%

Reactive Materials in the Removal of Phosphorus Compounds from Wastewater—A Review

et al. 2020

Self Cite

View full text Add to dashboard Cite

Modern technologies designed to treat wastewater containing phosphorus compounds are based on the processes of adsorption and precipitation. In addition, more environmentally friendly and cheaper materials are being sought to ensure greater conformity with overarching assumptions of green chemistry and sustainable development. Against that background, this paper offers a review and analysis of available information on the considered reactive materials that have the capacity to remove phosphorus from wastewater. These materials are categorised as natural (with a sub-division in line with the dominant sorption groups of Al/Fe or Ca/Mg), waste, or man-made. Notably, most studies on sorbents have been carried out in laboratory systems via experimentation under static conditions. Among the natural materials, opoka has the highest sorption capacity of 181.20 g P/kg, while red mud (in the waste material category) is most efficient at binding phosphorus with a level of 345.02 g P/kg. Finally, among the group of commercial materials, Rockfos® has the highest sorption capacity of 256.40 g P/kg. In addition, this paper recognises the effect of composition, pH, and physical properties on a reactive material’s capacity to absorb phosphorus, as well as the possibility for further potential use in the production of fertilisers.

show abstract

“…Thus, during the settling step, i.e., after the feast phase, the washout of non-PHA storing bacterial cells was achieved [110]. PHA accumulation occurred at higher substrate loads (40% of the weight of the dry cell, DCW), low nitrogen (45% DCW), and low phosphorus (54% DCW) conditions [111]. In another study, under optimal nutrient conditions, the production of PHA was reported to be only 14% [112].…”

Section: Potential For the Recovery Of Nutrients And Phamentioning

confidence: 99%

Removal and recovery of nutrients and value-added products from wastewater: technological options and practical perspective

Srivastava

Pothu

Sanchez

et al. 2021

Syst Microbiol and Biomanuf

View full text Add to dashboard Cite

Wastewaters from various process industries, namely food and agricultural, sugar mill, brewery, milk, vegetable and fruit, and meat and fisheries processing industries and their wastewater effluents contain nutrients, organic matter, inorganic, heavy metals, suspended solids, and pathogens. The discharges of non-treated wastewater enter the nearby aquatic ecosystem (e.g., lakes, rivers) and are a significant concern due to the presence of different nutrients, competing ions and C containing pollutants. It causes excessive growth of algae, loss of habitat/species, and other negative impacts on human health/environment. In the present review, different treatment approaches have been discussed in utilizing these nutrients to synthesize value-added products such as biopolymer, biofuel, pigment, organic acid, or enzymes. These biopolymers can be used to prepare various food products/packaging materials. Dextran, chitosan, carrageenan, alginate, and pectin are good examples of non-food biopolymers. Besides these products, poly-β-hydroxybutyrate (PHB) synthesis from wastewater nutrients is reported as a new source of bio-nanocomposite materials/biopolymer-based coatings. In this review, the different treatment approaches are discussed, which are being used worldwide for the removal/recovery of nutrients, toxic pollutants, and the potential resource recovery of value-added products from wastewater.

show abstract

The impact of powdered keramsite on activated sludge and wastewater treatment in a sequencing batch reactor

Cited by 15 publications

References 20 publications

Removal of Nutrients From Anaerobically Digested Swine Wastewater Using an Intermittent Cycle Extended Aeration System

Removal of Nutrients From Anaerobically Digested Swine Wastewater Using an Intermittent Cycle Extended Aeration System

Reactive Materials in the Removal of Phosphorus Compounds from Wastewater—A Review

Removal and recovery of nutrients and value-added products from wastewater: technological options and practical perspective

Contact Info

Product

Resources

About