Abstract:
:The aim of this study was to achieve aerobic granulation utilizing fermented municipal wastewater under low pH, and alkalinity conditions. Stable granulation was achieved after a 166-day start-up period. Due to low influent strength, supplemental carbon addition, in the form of sucrose, was added to the feed storage tank on the 82nd day of start-up to facilitate granulation. This increased the system's organic loading rate from 1.43 ± 0.14 to 2.53 ± 0.18 kg COD/m(3)/d, and reduced the influent pH due to fermentation of the added sucrose. Although granulation was successful, the nutrient removal was limited. Removal rates at an influent pH of 6.23 ± 0.06 were 54.4% ± 8.3% for phosphorus, 21.9% ± 4.1% for ammonium, and 84.0% ± 3.0% for total chemical oxygen demand (COD). During the second phase of experimentation, increased amounts of sucrose were added to the feed, which resulted in increased volatile fatty acid concentrations and pH reduction to 5.62 ± 0.12 due to fermentation. Under further reduced pH conditions, phosphorus, ammonium, and total COD removal were found to be 58.9% ± 4.7%, 37.9% ± 4.7%, and 87.1% ± 0.9%, respectively. Settling volume indexes, SVI10 and SVI30, were found to be 148.8 ± 28.9 mL/g, for the influent pH of 6.23 ± 0.06, and 157.5 ± 40.6 mL/g, for the influent pH of 5.62 ± 0.12. This high SVI is indicative of the formation of lower-density granules in comparison to high-ash-content granules. The absence of denitrification-induced chemical phosphorus precipitation within the granule was likely a contributing factor to the low granule density observed in the system.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Leong J,Rezania B,Mavinic DSdoi
10.1080/09593330.2015.1063704subject
Has Abstractpub_date
2016-01-01 00:00:00pages
55-63issue
1eissn
0959-3330issn
1479-487Xjournal_volume
37pub_type
杂志文章abstract::Screened dairy manure, with a total solids content equal to 34.7 g TS l(-1), was subjected to a coagulation-flocculation treatment using FeCl, as coagulant and a medium cationic polyacrylamide (MCP1). The effect of changing doses of the additives (FeCl3 and MCP1) on the properties of supernatant fractions was studied ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332708618629
更新日期:2006-02-01 00:00:00
abstract::We assessed the physicochemical and microbiological properties of composting toilet products in Abidjan for their potential use in agriculture. Samples of urine and faeces were collected and analysed after 123 days of storage in plastic cans (urine) and 8 months of storage in closed composting bags (faeces). Selected ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1387610
更新日期:2019-01-01 00:00:00
abstract::The objective of this work is to evaluate biological groundwater treatment systems that will achieve hexavalent chromium removal from groundwater at hexavalent chromium (Cr(VI)) groundwater concentrations in the 0-200 μg/L range under anoxic conditions. The effect of type of organic substrate added as feed to the grou...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1393013
更新日期:2019-01-01 00:00:00
abstract::Although electroosmosis has been confirmed to be a promising technique for stabilizing soil with low permeability and high water content, several issues remain with this innovative method, including high power consumption, nonuniform strengthening effect, and electrode corrosion. In this context, for improving the fea...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2019.1634154
更新日期:2021-01-01 00:00:00
abstract::This study investigates the changes in biodegradability, rheology and metal concentration of wastewater sludge--non-hydrolyzed (raw), sterilized, and hydrolyzed (thermal alkaline pre-treatment) at total solids concentration from 10-50 g l(-1) to ascertain the bioavailability of nutrients for subsequent fermentation. T...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332808618788
更新日期:2007-03-01 00:00:00
abstract::The deposition of noble metal on titanium dioxide (TiO2) has been considered as an effective strategy to improve the activity of TiO2. In this paper, TiO2 nanoparticles were prepared via a sol-gel route, followed by heat treatment at elevated temperatures. TiO2-Pt catalyst was prepared by deposition of platinum (Pt) o...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2010.501822
更新日期:2011-02-01 00:00:00
abstract::Landfill aeration can accelerate the biological degradation of organic waste and reduce methane production; however, it induces nitrous oxide (N2O), a potent greenhouse gas. Nitrification is one of the pathways of N2O generation as a by-product during aerobic condition. This study was initiated to demonstrate the feat...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1168485
更新日期:2016-11-01 00:00:00
abstract::The poultry slaughterhouse wastewater has a high pollutant load, mainly organic matter, and nutrient content. The nitrogen and phosphorus discharge can cause eutrophication of the receiving water bodies. Electrocoagulation has been studied for several pollutants removal from different sources. The objective of this wo...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2020.1804464
更新日期:2020-08-20 00:00:00
abstract::Pyrolysis is potentially an effective treatment of oily sludge for oil recovery, and its kinetics and efficiency are expected to be affected by additives. In the present study, the pyrolysis parameters, including heating rate, final pyrolysis temperature, and pyrolysis time of oily sludge in the presence of agricultur...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1194481
更新日期:2017-02-01 00:00:00
abstract::Aminophenols (AP) are synthetic intermediates in pharmaceutical, photographic and chemical dye industry. They can be released into the environment from wastewater and can react during water treatment processes. Therefore, it was interesting to study the oxidation of AP with chlorine and monochloramine in aqueous solut...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1025859
更新日期:2015-01-01 00:00:00
abstract::Heterogeneous electro-Fenton mineralization of Acid Red 18 (AR18) in aqueous solution was studied with magnetite Fe3O4 (MNPs) and haematite Fe2O3 (HNPs) nanoparticles as catalysts. High mineralization yields of AR18 were obtained with magnetite, 81% TOC removal after 180 min of electrolysis in 40 mg L-1 Fe3O4, pH 3.0,...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2018.1557258
更新日期:2020-06-01 00:00:00
abstract::The impact of carbon source variation on the physical and chemical characteristics of aerobic granular sludge and its biological nutrient (nitrogen and phosphorus) removal performance was investigated. Two identical sequencing batch reactors, R1 and R2, were set up. Granular biomass was cultivated to maturity using ac...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1023364
更新日期:2015-01-01 00:00:00
abstract::It is the priority to guarantee biosafety for drinking water treatment. The objective of this study was to evaluate the impact of widely applied conventional and ozone-biological activated carbon (O3-BAC) advanced treatment technology on biosafety of drinking water. The items, including assimilable organic carbon (AOC...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1297850
更新日期:2018-01-01 00:00:00
abstract::Poly(m-phenylenediamine) (PmPD) microparticles, from the monomer with two amino groups, were synthesized through chemical oxidation, and the strong adsorbability of mercury ions on to PmPD was systematically examined. The results revealed a rapid adsorption process with an equilibrium time of 30 minutes. Also, the ads...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.572924
更新日期:2012-01-01 00:00:00
abstract::Research was undertaken to investigate the treatment of fishery washing water using Bacillus sphaericus, and to recover the spores for subsequent use as bioinsecticide to control the population of mosquitoes. This treatment method could reduce pollution due to organic matter by decreasing the value of Chemical Oxygen ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593332208618242
更新日期:2001-06-01 00:00:00
abstract::The effect of initial total solids (TS) concentration on volatile fatty acid (VFAs) production from food waste under mesophilic conditions (35 °C) was determined. VFAs concentration and composition, biogas production, soluble chemical oxygen demand concentration, TS and volatile solids (VS) reduction, and ammonia nitr...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2015.1015454
更新日期:2015-07-01 00:00:00
abstract::The mineralisation of remazol black B (RBB) was studied at concentrations ranging from 20-1000 mgL(-1). The work was aimed at investigating the Fenton-like peroxidation of RBB at a concentration typically obtained in Batik cottage industries. Other response parameters were degradation and colour removal efficiencies. ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.610360
更新日期:2012-06-01 00:00:00
abstract::Maturation ponds are excellent natural treatment systems for disinfecting domestic wastewater from pathogenic bacteria because of their great sunlight exposure through depth and high pH and dissolved oxygen values - all considered important factors. Escherichia coli (E. coli) removal is higher at closer to the surface...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1310936
更新日期:2018-03-01 00:00:00
abstract::Solid-liquid separation of animal slurry, with solid fractions used for composting, has gained interest recently. However, efficient composting of separated animal slurry solid fractions (SSFs) requires a better understanding of the process dynamics in terms of important physical parameters and their interacting physi...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2013.824008
更新日期:2014-01-01 00:00:00
abstract::Municipal and agricultural waste, and sludge from wastewater treatment represent a large source of pollution. Gaseous fuels can be produced from waste decomposition and then used to run internal combustion engines for power and heat generation. The present paper focuses on thermal efficiency and environmental performa...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330309385657
更新日期:2003-09-01 00:00:00
abstract::Pseudomonas putida RW-II isolated from petroleum refinery wastewater was tested for hydrocarbon degradation potential in the presence of polycationic surfactant, cetyl trimethylammonium bromide (CTAB). The effects of CTAB on growth profile, cell surface hydrophobicity, cell adhesion, zeta potential and hydrocarbon bio...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.561877
更新日期:2011-12-01 00:00:00
abstract::Biological nutrient removal (BNR) in municipal wastewater treatment to remove carbonaceous substrates and nutrients, has recently become increasingly popular worldwide due to increasingly stringent regulations. Biological fluidized bed (BFB) technology, which could be potentially used for BNR, can provide some advanta...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2004.9619360
更新日期:2004-06-01 00:00:00
abstract::This paper presents the effects of treatments with cement and lime on the consistency limits of marine sediments dredged from Dunkirk port. The Casagrande percussion test and the fall cone test were used to determine the liquid limits of raw sediments and treated marine sediments. For the evaluation of the plastic lim...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2011.633565
更新日期:2012-06-01 00:00:00
abstract::C5+, a mixture of benzene, toluene, xylene, styrene, dicyclopentadiene (DCPD), naphthalene and other compounds, is a byproduct of polyethylene production and has been introduced into the environment via accidental release. The degradation of C5+ was studied using a defined consortium of 11 distinct bacterial strains i...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330409355469
更新日期:2004-03-01 00:00:00
abstract::Surface and groundwater from Pangani River Basin (PRB) were sampled in dry and wet seasons, analysed for dissolved organic and inorganic nutrients (N, P, Si and Urea). There was spatial and seasonal nutrients' variability, with enrichment of dissolved inorganic fractions accumulated from natural and anthropogenic sour...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2017.1310305
更新日期:2018-03-01 00:00:00
abstract::This study was conducted to investigate the possible relationship between a molecular biological investigation and water quality parameters in monitoring groundwater pollution at the immediate boundary of uncontrolled landfills and their downgradient aquifers, which may consequently facilitate unbiased monitoring for ...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330801987087
更新日期:2008-07-01 00:00:00
abstract::Optical Brightening Agent (OBA) wastewater (OBAW) has been reported to be highly resistant to biodegradation. In this study, a real OBAW from an industry which was already treated using primary and secondary treatments (residual COD of secondary clarifier overflow (SCO): 3400-3700 mgL-1) was further treated by Fenton'...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2019.1692912
更新日期:2019-11-20 00:00:00
abstract::Mecoprop-p herbicide is often found in wells and water abstractions in many areas around Europe, the UK inclusive. There is a growing environmental and public health concern about mecoprop-p herbicide pollution in ground and surface water in England. Reviews suggest that extensive work has been carried out on the cont...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2014.891658
更新日期:2014-08-01 00:00:00
abstract::A novel nanocomposite (NC) based on magnetite nanoparticles (Fe3O4-NPs) immobilized on the surface of a cationic exchange polymer, C100, using a modification of the co-precipitation method was developed to obtain magnetic NCs for phosphate removal and recovery from water. High-resolution transmission electron microsco...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330.2016.1141999
更新日期:2016-08-01 00:00:00
abstract::The gene coding for xylose isomerase from the thermophilic bacterium Fervidobacterium gondwanense was cloned and overexpressed in Escherichia coli. The produced xylose isomerase (XylA), which closely resembles counterparts from Thermotoga maritima and T. neapolitana, was purified and characterized. It is optimally act...
journal_title:Environmental technology
pub_type: 杂志文章
doi:10.1080/09593330903486673
更新日期:2010-09-01 00:00:00