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Waste water phosphorous

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https://www.readbyqxmd.com/read/27817922/characterization-of-pesticide-sorption-behaviour-of-slow-pyrolysis-biochars-as-low-cost-adsorbent-for-atrazine-and-imidacloprid-removal
#1
Abhishek Mandal, Neera Singh, T J Purakayastha
Agri-wastes biochars viz. eucalyptus bark (EBBC), corn cob (CCBC), bamboo chips (BCBC), rice husk (RHBC) and rice straw (RSBC) and acid treated RSBC (T-RSBC), were characterized for their physico-chemical properties and sorption behaviour of atrazine and imidacloprid was studied. Kinetics study suggested that except atrazine adsorption on RSBC, which was best explained by the pseudo second order model, sorption of atrazine and imidacloprid on biochars was well explained by the modified Elovich model. Among the five normal biochars, the RSBC showed the maximum atrazine (37...
January 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/27788362/innovative-approach-for-recycling-phosphorous-from-agro-wastewaters-using-water-treatment-residuals-wtr
#2
Iris Zohar, James A Ippolito, Michael S Massey, Iggy M Litaor
Phosphorus capture from polluting streams and its re-use using industrial byproducts has the potential to also reduce environmental threats. An innovative approach was developed for P removal from soil leachate and dairy wastewater using Al-based water treatment residuals (Al-WTR) to create an organic-Al-WTR composite (Al/O-WTR), potentially capable of serving as a P fertilizer source. Al-WTR was mixed with either soil leachate, or with dairy wastewater, both of which contained elevated P concentrations (e...
October 24, 2016: Chemosphere
https://www.readbyqxmd.com/read/27692514/from-municipal-industrial-wastewater-sludge-and-fog-to-fertilizer-a-proposal-for-economic-sustainable-sludge-management
#3
Božidar Bratina, Andrej Šorgo, Janez Kramberger, Urban Ajdnik, Lidija Fras Zemljič, Janez Ekart, Riko Šafarič
After a ban on the depositing of untreated sludge in landfills, the sludge from municipal and industrial water-treatment plants can be regarded as a problem. Waste products of the water treatment process can be a problem or an opportunity - a source for obtaining raw materials. In the European Union, raw sludge and fats, oil and grease (FOG) from municipal and industrial wastewater treatment plants (WWTP) cannot be deposited in any natural or controlled environment. For this reason, it must be processed (stabilized, dried) to be used later as a fertilizer, building material, or alternative fuel source suitable for co-incineration in high temperature furnaces (power plants or concrete plants)...
December 1, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27472049/waste-recycling-by-vermicomposting-maturity-and-quality-assessment-via-dehydrogenase-enzyme-activity-lignin-water-soluble-carbon-nitrogen-phosphorous-and-other-indicators
#4
Hossein Alidadi, Ahmad Hosseinzadeh, Ali Asghar Najafpoor, Habibollah Esmaili, Jafar Zanganeh, Maryam Dolatabadi Takabi, Fardin Ghasemy Piranloo
Present study aims to examine the dynamics of maturation and qualification indicators in various vermicompost treatments and selection of the best treatment along with best maturation time in this regard. In this empirical study, dynamics of chemical (pH, electrical conductivity (EC), total nitrogen (TN), phosphorous, lignin, water soluble carbon (WSC), C/N, NH4/NO3) and biological (dehydrogenase enzyme (DEH) and DEH/WSC) properties were investigated in four various treatments, including various ratios of compost produced from municipal solid waste (MSW) and carbonaceous materials (50:50, 70:30, 85:15 and 100:0) over 100 days...
November 1, 2016: Journal of Environmental Management
https://www.readbyqxmd.com/read/27463402/mesocarbon-microbead-carbon-supported-magnesium-hydroxide-nanoparticles-turning-spent-li-ion-battery-anode-into-a-highly-efficient-phosphate-adsorbent-for-wastewater-treatment
#5
Yan Zhang, Xingming Guo, Feng Wu, Ying Yao, Yifei Yuan, Xuanxuan Bi, Xiangyi Luo, Reza Shahbazian-Yassar, Cunzhong Zhang, Khalil Amine
Phosphorus in water eutrophication has become a serious problem threatening the environment. However, the development of efficient adsorbents for phosphate removal from water is lagging. In this work, we recovered the waste material, graphitized carbon, from spent lithium ion batteries and modified it with nanostructured Mg(OH)2 on the surface to treat excess phosphate. This phosphate adsorbent shows one of the highest phosphate adsorption capacities to date, 588.4 mg/g (1 order of magnitude higher than previously reported carbon-based adsorbents), and exhibits decent stability...
August 24, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27329062/flocculent-settling-of-food-wastes
#6
Mohammad Monirul Islam Chowdhury, Mingu Kim, Basem Mikhaeil Haroun, George Nakhla, Michael Keleman
This study evaluated the flocculent settling in water and municipal wastewater (MWW) in a 10.6 ft deep column. A total of eight runs at three different testing conditions involving MWW alone, food waste (FW) alone, and FW in MWW (FW+MWW) were conducted. Total suspended solid (TSS), total BOD (TBOD), total COD (TCOD), total nitrogen (TN), and total phosphorous (TP) removal efficiencies after 3 hours of settling were 62%, 46%, 49%, 46% and 62% for FW, and 50%, 43%, 39%, 37% and 24% for MWW. Removal efficiencies of particulate COD (PCOD) and particulate BOD (PBOD) at the lowest surface overflow rate (SOR) of 1...
July 2016: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/27260530/selective-withdrawal-optimization-in-river-reservoir-systems-trade-offs-between-maximum-allowable-receiving-waste-load-and-water-quality-criteria-enhancement
#7
Fariborz Masoumi, Abbas Afshar, Sedigheh Torabi Palatkaleh
In this paper, a new systematic approach is designed to maximize the demand coverage and receiving waste load by river-reservoir systems while enhancing water quality criteria. The approach intends to control the reservoir eutrophication while developing a trade-off between the maximum receiving load and shortage on demand coverage. To simulate the system, a hybrid process-based and data-driven model is tailored. Initially, the two-dimensional hydrodynamics and water quality simulation model (CE-QUAL-W2) is linked with an effective single and/or multiple optimization algorithms (PSO) to evaluate the proposed scenarios...
December 0: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/27179297/enhanced-phosphorus-removal-from-wastewater-by-growing-deep-sea-bacterium-combined-with-basic-oxygen-furnace-slag
#8
Weizhi Zhou, Zhaosong Huang, Cuiping Sun, Haixia Zhao, Yuzhong Zhang
As one solid waste with potential for phosphorus removal, application of slags in water treatment merits attention. But it was inhibited greatly by alkaline solution (pH>9.5) and cemented clogging generated. To give one solution, phosphorus removal was investigated by combining deep-sea bacterium Alteromonas 522-1 and basic oxygen furnace slag (BOFS). Results showed that by the combination, not only higher phosphorous removal efficiency (>90%) but also neutral solution pH of 7.8-8.0 were achieved at wide ranges of initial solution pH value of 5...
August 2016: Bioresource Technology
https://www.readbyqxmd.com/read/26951721/phosphorous-recovery-from-sewage-sludge-ash-suspended-in-water-in-a-two-compartment-electrodialytic-cell
#9
Lisbeth M Ottosen, Pernille E Jensen, Gunvor M Kirkelund
Phosphorus (P) is indispensable for all forms of life on Earth and as P is a finite resource, it is highly important to increase recovery of P from secondary resources. This investigation is focused on P recovery from sewage sludge ash (SSA) by a two-compartment electrodialytic separation (EDS) technique. Two SSAs are included in the investigation and they contained slightly less P than phosphate rock used in commercial fertilizer production and more heavy metals. The two-compartment electrodialytic technique enabled simultaneous recovery of P and separation of heavy metals...
May 2016: Waste Management
https://www.readbyqxmd.com/read/26566540/assessment-of-microbial-populations-within-chicago-area-nearshore-waters-and-interfaces-with-river-systems
#10
Emily Sible, Alexandria Cooper, Kema Malki, Katherine Bruder, Thomas Hatzopoulos, Siobhan C Watkins, Catherine Putonti
The Chicago area locks separate and control water flow between the freshwaters of Lake Michigan and the network of Illinois waterways. Under extreme storm conditions, however, the locks are opened and storm waters, untreated waste, and runoff are released directly into the lake. These combined sewer overflow (CSO) events introduce microbes, viruses, and nutrients such as nitrogen and phosphorous into nearshore waters which likely affect the native species. We collected surface water samples from four Chicago area beaches - Gillson Park, Montrose Beach, 57th Street Beach, and Calumet Beach - every two weeks from May 13 through August 5, 2014...
December 2015: Data in Brief
https://www.readbyqxmd.com/read/26521546/performance-and-cost-evaluation-of-constructed-wetland-for-domestic-waste-water-treatment
#11
V T Deeptha, J S Sudarsan, G Baskar
Root zone treatment through constructed wetlands is an engineered method of purifying wastewater. The aim of the present research was to study the potential of wetland plants Phragmites and Typha in treatment of wastewater and to compare the cost of constructed wetlands with that of conventional treatment systems. A pilot wetland unit of size 2x1x0.9 m was constructed in the campus. 3x3 rows of plants were transplanted into the pilot unit and subjected to wastewater from the hostels and other campus buildings...
September 2015: Journal of Environmental Biology
https://www.readbyqxmd.com/read/26476058/linking-climate-change-mitigation-and-coastal-eutrophication-management-through-biogas-technology-evidence-from-a-new-danish-bioenergy-concept
#12
Bjarke Stoltze Kaspersen, Thomas Budde Christensen, Anders Michael Fredenslund, Henrik Bjarne Møller, Michael Brian Butts, Niels H Jensen, Tyge Kjaer
The interest in sustainable bioenergy solutions has gained great importance in Europe due to the need to reduce GHG emissions and to meet environmental policy targets, not least for the protection of groundwater and surface water quality. In the Municipality of Solrød in Denmark, a novel bioenergy concept for anaerobic co-digestion of food industry residues, manure and beach-cast seaweed has been developed and tested in order to quantify the potential for synergies between climate change mitigation and coastal eutrophication management in the Køge Bay catchment...
January 15, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/26408116/assessing-the-feasibility-of-n-and-p-recovery-by-struvite-precipitation-from-nutrient-rich-wastewater-a-review
#13
REVIEW
Ramesh Kumar, Parimal Pal
Literature on recovery of nitrogen and phosphorous from wastewater in the form of value-added struvite fertilizer has been critically reviewed towards the evolution of a sustainable management strategy. Presence of nitrogen and phosphorus is widespread in both domestic as well as industrial wastewater streams such as swine wastewater, landfill leachate, urine waste, dairy manure, coke wastewater, and beverage wastewater. Where these nitrogen and phosphorus compounds cause eutrophication of water bodies and considered as harmful discharges to the environment, they can be turned useful through simple chemical conversion into struvite (MgNH4PO4·6H2O)...
November 2015: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/26372940/reduction-of-orthophosphates-loss-in-agricultural-soil-by-nano-calcium-sulfate
#14
Dong Chen, Paul Szostak, Zongsu Wei, Ruiyang Xiao
Nutrient loss from soil, especially phosphorous (P) from farmlands to natural water bodies via surface runoff or infiltration, have caused significant eutrophication problems. This is because dissolved orthophosphates are usually the limiting nutrient for algal blooms. Currently, available techniques to control eutrophication are surprisingly scarce. Calcium sulfate or gypsum is a common soil amendment and has a strong complexation to orthophosphates. The results showed that calcium sulfate reduced the amount of water extractable P (WEP) through soil incubation tests, suggesting less P loss from farmlands...
January 1, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/26299426/synthesis-of-microcapsules-containing-different-extractant-agents
#15
Ángela Alcázar, Manuel Carmona, Ana M Borreguero, Antonio de Lucas, Juan F Rodríguez
Mercury is one of the most toxic pollutants, with high capacity of accumulation in living organism, causing important human health problems. Therefore, the mercury removal from water is an important research goal. In a previous work, an extractant agent [di(2-ethylhexyl)phosphoric acid] was microencapsulated in poly(styrene-co-divinylbenzene) by means of suspension polymerisation using toluene as diluent. In this study, this recipe has been modified changing the toluene by heptane and extended to four additional extractants (trioctylamine, trioctylmethylammonium chloride [TOMAC], tributyl phosphate and trioctylphosphine oxide)...
2015: Journal of Microencapsulation
https://www.readbyqxmd.com/read/26174354/mathematical-modeling-of-olive-mill-waste-composting-process
#16
Ioanna A Vasiliadou, Abu Khayer Md Muktadirul Bari Chowdhury, Christos S Akratos, Athanasia G Tekerlekopoulou, Stavros Pavlou, Dimitrios V Vayenas
The present study aimed at developing an integrated mathematical model for the composting process of olive mill waste. The multi-component model was developed to simulate the composting of three-phase olive mill solid waste with olive leaves and different materials as bulking agents. The modeling system included heat transfer, organic substrate degradation, oxygen consumption, carbon dioxide production, water content change, and biological processes. First-order kinetics were used to describe the hydrolysis of insoluble organic matter, followed by formation of biomass...
September 2015: Waste Management
https://www.readbyqxmd.com/read/26163501/1-2-dichlorobenzene-pretreatment-via-phosphoric-acid-mediated-fenton-reagent
#17
Mark D Richmond
A large industrial water resource recovery facility needed to significantly reduce the amount of 1,2-dichlorobenzene (ODCB) entering its biological treatment units. Numerous Advanced Oxidation Processes (AOPs) were considered based on literature and industry reports. Many AOPs appear to be incompatible with some of the native species present in groundwater or wastewater matrices. Iron, in particular, is often viewed as a nuisance increasing the complexity of the overall treatment scheme. The approach used in the current study was to incorporate the new AOP into the existing groundwater matrix and facilities as much as possible...
July 2015: Water Environment Research: a Research Publication of the Water Environment Federation
https://www.readbyqxmd.com/read/26136757/influence-of-biochar-mycorrhizal-inoculation-and-fertilizer-rate-on-growth-and-flowering-of-pelargonium-pelargonium-zonale-l-plants
#18
Giulia Conversa, Anna Bonasia, Corrado Lazzizera, Antonio Elia
Peat is the most common substrate used in nurseries despite being a very expensive and a non-renewable material. Peat replacement with biochar could be a sound environmental practice, as it is produced from waste biomass, but evaluation of biochar as a potting substrate is needed. Ratios of peat:biochar of 100:0, 70:30, 30:70 (BC0, BC30, and BC70, respectively), two fertilizer rates (FERT1, FERT2), and arbuscular mycorrhizal fungi (AMF) inoculation were tested on potted Pelargonium plants. Plant growth, flowering, bio-physiological and nutritional responses, and root mycorrhization were evaluated...
2015: Frontiers in Plant Science
https://www.readbyqxmd.com/read/26081304/conversion-of-coal-mine-drainage-ochre-to-water-treatment-reagent-production-characterisation-and-application-for-p-and-zn-removal
#19
Devin Sapsford, Marco Santonastaso, Peter Thorn, Steven Kershaw
Coal mine drainage ochre is a ferruginous precipitate that forms from mine water in impacted watercourses and during treatment. With thousands of tonnes per annum of such ochre arising from mine water treatment in the UK alone, management of these wastes is a substantive issue. This paper demonstrates that the ochre from both active and passive treatment of coal mine drainage can be transformed into an effective water treatment reagent by simple acid dissolution and that the reagent can be used for the removal of dissolved phosphorous from municipal wastewater and zinc from non-coal mine waters...
September 1, 2015: Journal of Environmental Management
https://www.readbyqxmd.com/read/26020862/companion-animals-symposium-rendered-ingredients-significantly-influence-sustainability-quality-and-safety-of-pet-food
#20
D L Meeker, J L Meisinger
The rendering industry collects and safely processes approximately 25 million t of animal byproducts each year in the United States. Rendering plants process a variety of raw materials from food animal production, principally offal from slaughterhouses, but include whole animals that die on farms or in transit and other materials such as bone, feathers, and blood. By recycling these byproducts into various protein, fat, and mineral products, including meat and bone meal, hydrolyzed feather meal, blood meal, and various types of animal fats and greases, the sustainability of food animal production is greatly enhanced...
March 2015: Journal of Animal Science
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