Innovative Biological Process – Bioleaching - Enhancing Sludge Dewaterability, Pilot Study and Full Scale Application

2017 ◽  
Vol 2017 (5) ◽  
pp. 5098-5102
Author(s):  
Weizhong Xiao ◽  
Yu Yuan ◽  
Juan Tao ◽  
Sami Sarrouh
Keyword(s):  
Pilot Study ◽  
Biological Process ◽  
Full Scale ◽  
Sludge Dewaterability

Biotower Pilot Study Results for a Photographic and Specialty Paper Manufacturer

1992 ◽  
Vol 26 (9-11) ◽  
pp. 2109-2112
Author(s):  
J. G. Cleary ◽  
T. J. Boehm ◽  
R. J. Geary
Keyword(s):  
New York ◽  
Pilot Study ◽  
New York State ◽  
Cross Flow ◽  
Full Scale ◽  
Treatment System ◽  
Salmon River ◽  
Study Results ◽  
Comparable Performance ◽  
Pollutant Discharge

Schoeller Technical Papers, Inc. (Schoeller), which manufactures photographic and other specialty papers, is located in Pulaski, New York. The wastewater treatment system consists of a primary clarifier and two settling lagoons. Secondary treatment using a biotower was proposed to meet the new New York State Pollutant Discharge Elimination System (SPDES) discharge limits for BOD and TSS. The effluent from each basin is discharged directly to the Salmon River, at an approximate average flow of 1.6 million gallons/day (mgd). A biotower pilot study was performed to evaluate the suitability of a biotower treatment process for treating the total effluent from Schoeller's facility. The pilot study was used to select the media for the full-scale biotower and to confirm the design loading for the full-scale biotower, which proceeded in parallel with the pilot study due to the schedule constraints. Two pilot systems were operated to compare a conventional cross-flow and vertical media. Test data were collected to evaluate the performance of each pilot treatment system at a range of loading conditions and to develop the design loading information for the full-scale plant. The pilot units were operated for a period of 10 months. BOD concentrations to the pilot units averaged 58 mg/l with a peak of 210 mg/l. Approximately 80% of the BOD was soluble. BOD loadings averaged 21 lb BOD/day/1,000 cubic feet with a peak of 77 lb BOD/day/1,000 cubic feet. Both pilot units achieved excellent BOD removals exceeding 75%, with average effluent soluble BOD concentration less than 10 mg/l and average effluent TSS concentrations of 12 mg/l. The two media achieved comparable performance throughout most of the pilot study.

Experiment of Polyester Wastewater Treatment by Aerobic Membrane Bioreactor and an Engineering Application

2012 ◽  
Vol 518-523 ◽  
pp. 2130-2137
Author(s):  
Si Hao Lv ◽  
Hui Chang ◽  
Zhi Hui Liang ◽  
Yan Yan Zeng ◽  
Hong Bo Fan
Keyword(s):  
Water Quality ◽  
Pilot Study ◽  
Membrane Bioreactor ◽  
Suspended Solids ◽  
Loading Rate ◽  
Engineering Application ◽  
Full Scale ◽  
Effluent Water ◽  
Small Influence ◽  
Volumetric Loading

A pilot study was carried out to evaluate the application of aerobic submerged MBR in treating polyester wastewater and a full scale system in which MBR was adopted as the key aspect was put forward to treat the polyester wastewater of Zhuhai Yuhua Polyester co., Ltd., China. The pilot study revealed that HRT could be affected by the influent COD, and a HRT larger than 36h was proposed for treating polyester wastewater by MBR. Volumetric loading rate and sludge loading rate ranged in 0.7-2.0 kgCOD/m3•d and 0.09~0.24 kgCOD/ kgMLSS•d respectively were of small influence on the COD removal. DO in the range of 2.5-4.0 mg/L seemed to be optimal for avoiding limitations due to oxygen concentration and creating an effective turbulence. The modified full scale system which includes anaerobic digesting tank and MBR followed by a stabilization pond was verified to be effective to treat the polyester wastewater in the latest two years. The results illustrated that the effluent water quality could meet the discharge limits of water pollutants (DB 44/26-2001) which was established in Guangdong, China. Observed sludge yield of the system fluctuated between 0.10-0.18 gMLSS/gCOD and averaged at 0.137 gMLSS/gCOD. The membrane permeate at around 10 L/m2h, TMP of less than 0.7bar, and total mixed liquor suspended solids (MLSS) between 6-7g/L were suitable to operate the MBR.

scholarly journals Antibiotic Resistance Genes Dynamics at the Different Stages of the Biological Process in a Full-Scale Wastewater Treatment Plant

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 650 ◽  
Author(s):  
Ioanna Zerva ◽  
Ioanna Alexandropoulou ◽  
Maria Panopoulou ◽  
Paraschos Melidis ◽  
Spyridon Ntougias
Keyword(s):  
Antibiotic Resistance ◽  
Wastewater Treatment ◽  
Resistance Genes ◽  
Wastewater Treatment Plant ◽  
Biological Process ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Antibiotic Resistance Genes ◽  
Additional Treatment ◽  
Full Scale

Wastewater treatment plants (WWTPs) highly contribute to the transmission of antibiotic resistance genes (ARGs) in the environment. In this work, the diversity of ermF, ermB, sul1 and int1-enconding genes was examined in the influent, the mixed liquor and the effluent of a full-scale WWTP. Based on the clones analyzed, similar genotypes were recorded at all process stages. However, distinct genotypes of int1 were responsible for the expression of sul1 and ermF genes in Gammaproteobacteria and Bacteroidetes, respectively. Due to the detection of similar ARGs profiles throughout the biological process, it is concluded that additional treatment is needed for their retention.

Treatment of winery wastewater in a full-scale fixed bed biofilm reactor

2005 ◽  
Vol 51 (1) ◽  
pp. 71-79 ◽  
Author(s):  
G. Andreottola ◽  
P. Foladori ◽  
P. Nardelli ◽  
A. Denicolo
Keyword(s):  
High Efficiency ◽  
Biological Process ◽  
Soluble Fraction ◽  
Fixed Bed ◽  
Empty Space ◽  
Full Scale ◽  
Biofilm Reactor ◽  
First Year ◽  
Winery Wastewater ◽  
Influent Wastewater

The treatment of winery wastewater was performed at full-scale applying a two-stage fixed bed biofilm reactor (FBBR) system for the discharge in the sewerage. The results of the first year of operation at the full-scale plant are presented. Values of removed organic loads and effluent concentrations were interpreted on the basis of the COD fractionation of influent wastewater assessed through respirometric tests. The average removal efficiency of total COD was 91%. It was not possible to reach an higher efficiency because of the unbiodegradable soluble fraction of COD (about 10% of total COD on average during the whole year), that cannot be removed by biological process or settling. Due to the high empty space offered by the plastic carriers, FBBRs did not require backwashing during the seasonal operationing period of the plant (September–March). In comparison with other treatment systems the FBBR configuration allows one to ensure a simple management, to obtain high efficiency also in the case of higher fluctuations of flow and loads and to guarantee a good settleability of the sludge, without bulking problems.

Rehabilitation Professionals’ Attitudes towards Medicinal Marijuana Use: A Pilot Study

2017 ◽  
Vol 48 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Stephanie L. Lusk ◽  
Teresia M. Paul
Keyword(s):  
Pilot Study ◽  
Study Design ◽  
Medical Marijuana ◽  
Marijuana Use ◽  
Full Scale ◽  
Rehabilitation Professionals ◽  
Design And Implementation

Attitudes toward the use of medicinal marijuana have continued to change, which is reflected in the number of states that have passed legislation allowing for its use and in the number of states petitioning to place this matter on upcoming ballots. Understanding the attitudes of rehabilitation professionals toward medicinal marijuana use is important as they are responsible for providing appropriate support and services to all consumers and will be responsible for navigating through uncharted territory when it comes to this new trend. Their attitudes might determine how they approach the ensuing demands and consequences associated with the use of medical marijuana by their consumers. This manuscript reports the results of a pilot study conducted as a means to determine the most appropriate way to measure the attitudes of these professionals toward the use of marijuana for medicinal purposes. Results from the pilot are used to inform the researchers on the appropriateness of their study design and implementation procedures before a full scale study is conducted..

Training nonanesthetist administration of propofol for gastrointestinal endoscopy in scenario-based full-scale hybrid simulation – a pilot study

2013 ◽  
Vol 48 (11) ◽  
pp. 1354-1358 ◽  
Author(s):  
Petter Westfelt ◽  
Leif Hedman ◽  
Mikael Axelsson Lindkvist ◽  
Lars Enochsson ◽  
Li Felländer-Tsai ◽  
...  
Keyword(s):  
Pilot Study ◽  
Gastrointestinal Endoscopy ◽  
Hybrid Simulation ◽  
Full Scale

scholarly journals Correlates of Nine-Month Retention following Interim Buprenorphine-Naloxone Treatment in Opioid Dependence: A Pilot Study

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
A. Håkansson ◽  
C. Widinghoff ◽  
T. Abrahamsson ◽  
C. Gedeon
Keyword(s):  
Pilot Study ◽  
Opioid Dependence ◽  
Pilot Trial ◽  
Treatment Phase ◽  
Full Scale ◽  
Urine Samples ◽  
Interim Phase ◽  
Other Substances ◽  
Baseline Characteristics ◽  
Naloxone Treatment

Interim medication-only treatment has been suggested for the initiation of opioid maintenance treatment (OMT) in opioid-dependent subjects, but this rarely has been studied using buprenorphine instead of methadone. Following a pilot trial assessing interim buprenorphine-naloxone treatment in order to facilitate transfer into OMT, we here aimed to study retention, and potential correlates of retention, in full-scale treatment. Thirty-six patients successfully referred from a waiting list through an interim treatment phase were followed for nine months in OMT. Baseline characteristics, as well as urine analyses during the interim phase and during full-scale OMT, were studied as potential correlates of retention. The nine-month retention in OMT was 83 percent (n=30). While interim-phase urine samples positive for benzodiazepines did not significantly predict dropout from full-scale OMT (p=0.09), urine samples positive for benzodiazepines within full-scale OMT were significantly associated with dropout (p<0.01), in contrast to other substances and baseline characteristics. Retention remained high through nine months in this pilot study sample of patients referred through buprenorphine-naloxone interim treatment, but use of benzodiazepines is problematic, and the present data suggest that it may be associated with treatment dropout.

Advanced oxidation of methyl-tertiary butyl ether: pilot study findings and full-scale implications

2008 ◽  
Vol 57 (6) ◽  
pp. 403-418
Author(s):  
Sunil Kommineni ◽  
Zaid Chowdhury ◽  
Michael Kavanaugh ◽  
Dhananjay Mishra ◽  
Jean-Philippe Crouè
Keyword(s):  
Pilot Study ◽  
Advanced Oxidation ◽  
Full Scale ◽  
Methyl Tertiary Butyl Ether ◽  
Butyl Ether ◽  
Tertiary Butyl
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