Abstract：
:Hydrogen sulfide (H2S) is a major malodorous compound emitted from wastewater treatment plants. In this study, the performance of three pilot-scale immobilized-cell biotrickling filters (BTFs) spacked with combinations of bamboo charcoal and ceramsite in different ratios was investigated in terms of H2S removal. Extensive tests were performed to determine the removal characteristics, pressure drops, metabolic products, and removal kinetics of the BTFs. The BTFs were operated in continuous mode at low loading rates varying from 0.59 to 5.00 g H2S m(-3) h(-1) with an empty bed retention time (EBRT) of 25 s. The removal efficiency (RE) for each BTF was >99% in the steady-state period, and high standards were met for the exhaust gas. It was found that a multilayer BTF had a slight advantage over a perfectly mixed BTF for the removal of H2S. Furthermore, an impressive amount >97% of the H2S was eliminated by 10% of packing materials near the inlet of the BTF. The modified Michaelis-Menten equation was adopted to describe the characteristics of the BTF, and K s and V m values for the BTF with pure bamboo charcoal packing material were 3.68 ppmv and 4.26 g H2S m(-3) h(-1), respectively. Both bamboo charcoal and ceramsite demonstrated good performance as packing materials in BTFs for the removal of H2S, and the results of this study could serve as a guide for further design and operation of industrial-scale systems.
journal_name
Saudi J Biol Scijournal_title
Saudi journal of biological sciencesauthors
Chen Y,Fan Z,Ma L,Yin J,Luo M,Cai Wdoi
10.1016/j.sjbs.2014.05.008subject
Has Abstractpub_date
2014-11-01 00:00:00pages
450-6issue
5eissn
1319-562Xissn
2213-7106pii
S1319-562X(14)00047-3journal_volume
21pub_type
杂志文章abstract：:Three important varieties of dates (Sukri, Barhi, and Rothana), grown in Saudi Arabia were analyzed for their chemical, mineral and anti-bacterial activity. Among all the varieties analyzed, the Sukri dates had the highest moisture (16%), carbohydrate (80.65 mg/g) and the phenolic content (1.24 mg GAE/100 g) whereas, ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2019.11.029
更新日期：2020-07-01 00:00:00
abstract：:Tomato (Lycopersicon esculentum) is one of the widely grown vegetables worldwide. Fusarium oxysporum f. sp. lycopersici (FOL) is the significant contributory pathogen of tomato vascular wilt. The initial symptoms of the disease appear in the lower leaves gradually, trail by wilting of the plants. It has been reported ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.sjbs.2019.06.002
更新日期：2019-11-01 00:00:00
abstract：:Periodontitis is commonly diagnosed based on clinical parameters. However, the analysis of a few unique biomarkers of the disease process present in the saliva and blood can further assist the estimation of the rate of disease progression. Aim:The present study attempted to correlate the alkaline phosphatase (ALP) an...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2020.10.016
更新日期：2021-01-01 00:00:00
abstract：:Antibiotic resistance is a problem of deep scientific concern both in hospital and community settings. Rapid detection in clinical laboratories is essential for the judicious recognition of antimicrobial resistant organisms. Production of extended-spectrum β-lactamases (ESBLs) is a significant resistance-mechanism tha...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2014.08.002
更新日期：2015-01-01 00:00:00
abstract：:Conservation in the Kingdom of Saudi Arabia is relatively young, yet have made considerable gains in conservation through strategic proclamation and reintroductions. Changes in land use, illegal hunting and competition with domestic stock has decimated the native ungulates, meaning that the survival of the native ungu...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2017.03.009
更新日期：2018-02-01 00:00:00
abstract：:Plants encounter many biotic agents, such as viruses, bacteria, nematodes, weeds, and arachnids. These entities induce biotic stress in their hosts by disrupting normal metabolism, and as a result, limit plant growth and/or are the cause of plant mortality. Some biotic agents, however, interact symbiotically or synerg...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.sjbs.2019.05.004
更新日期：2019-09-01 00:00:00
abstract：:Employing the antibacterial property of industrial bamboo vinegar (IBV) and the photocatalytic degradation of TiO2, bamboo macromolecules were pretreated and processed into nonvolatile and antibacterial bio board (NVABB). The NVABB was then analyzed by conducting Fourier-transform infrared spectroscopy, thermogravimet...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2017.12.003
更新日期：2018-03-01 00:00:00
abstract：:Medical exposure of the general population due to radiological investigations is the foremost source of all artificial ionising radiation. Here, we focus on a particular diagnostic radiological procedure, as only limited data are published with regard to radiation measurements during urethrograpic imaging. Specificall...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2020.08.026
更新日期：2021-01-01 00:00:00
abstract：:In this study was conducted the in vitro antimicrobial, antibiofilm, antioxidant, antigenotoxic and anticancer activities investigations on the moss Bryum capillare Hedw (BC). Antimicrobial and antibiofilm activity were tested by MIC and microplate biofilm methods on antibiotic resistant bacteria. While the antioxidan...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2020.10.031
更新日期：2021-01-01 00:00:00
abstract：:The present study sought to assess the potential of the cestode Hymenolepis diminuta as a bioindicator for lead accumulation in two industrial areas of the city of Riyadh, Saudi Arabia. Rats (Meriones libycus) were collected from two sites (industrial area II and Salbukh) in Riyadh. In the industrial area II, the mean...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2013.09.010
更新日期：2014-09-01 00:00:00
abstract：:Fish kidneys are sensitive to chemical changes in the freshwater ecosystem because they are directly and constantly exposed to chemicals dissolved in the water. This study evaluated nephrotoxicity in Wallago attu and Cirrhinus mrigala harvested from the Chenab River in an area of industrial and sewage waste disposal. ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2019.02.003
更新日期：2019-05-01 00:00:00
abstract：:This study aims to present an integrated process that can be used to produce biomedical and biological active components from the fruit shell of Camellia oleifera Abel. Through the Foss method, Aldehyde, acid compounds, acyl and alcohol compounds account for 22.7, 15.93, 0.24 and 61.13% of the extractives which were e...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2017.08.006
更新日期：2018-02-01 00:00:00
abstract：:Silver nanoparticles (AgNPs) are gaining considerable importance due to their attractive physicochemical properties for many applications. In the present study, (Ag NPs) were synthesized by the reduction of aqueous solutions of silver nitrate (AgNO3) with powder and solvent extracts of Padina pavonia (brown algae). Th...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2018.01.007
更新日期：2019-09-01 00:00:00
abstract：Background & objectives:Polycystic ovary syndrome (PCOS) is the most common endocrinal disorder, and the greatest cause of infertility in women. Despite availability of individual data on impact of multiple endocrinal, reproductive and even metabolic factors in PCOS individuals, the data on the co-existence of BED and ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2020.08.039
更新日期：2020-12-01 00:00:00
abstract：:The study explored on the commonly available weed plant Commelina nudiflora which has potential in-vitro antioxidant and antimicrobial activity. The different polar solvents such as ethanol, chloroform, dichloromethane, hexane and aqueous were used for the soxhlet extraction. The extracts were identified pharmacologic...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2014.09.016
更新日期：2015-05-01 00:00:00
abstract：:Corona viruses (CoV) are known to cause extreme pandemics in the globe. The year 2020 will be a pandemic with the spread of the novel coronavirus (SARS-CoV-2) across the globe. Coronavirus 2019 (COVID-19) has been a part of our scary life for more than a quarter of a year in 2020. The Wuhan market and China have been ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.sjbs.2020.11.035
更新日期：2021-01-01 00:00:00
abstract：:Metabolic syndrome (Mets) is a major health hazard. The syndrome is strongly linked to cardiovascular disease. The objective of the current study was to address whether or not crocin could protect against experimentally-induced MetS in rats as well as the possible underlying mechanisms. Animals were allocated into 4 g...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2020.01.004
更新日期：2020-05-01 00:00:00
abstract：:Rice ragged stunt virus (RRSV) is a very important virus that infects rice and causes serious yield losses in Asian countries and other major rice planting areas. Thus, it is urgent to establish an efficient and practical approach for identification and diagnosis in the field. Our results indicated that reverse transc...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2016.02.024
更新日期：2018-12-01 00:00:00
abstract：:Green synthesis of nanoparticles using various plant materials opens a new scope for the phytochemist and discourages the use of toxic chemicals. In this article, we report an eco-friendly and low-cost method for the synthesis of silver nanoparticles (AgNPs) using Andean blackberry fruit extracts as both a reducing an...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2015.09.006
更新日期：2017-01-01 00:00:00
abstract：:Warfarin doses are greatly affected by polymorphism altering cytochrome P450 2C9 (CYP2C9) and vitamin K epoxide reductase complex subunit 1 (VKORC1) gene. This study evaluated the prevalence of alleles (either single or double) and carriers of single nucleotide polymorphisms (SNPs) in both genotypes CYP2C9 and VKORC1 ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2019.11.007
更新日期：2020-01-01 00:00:00
abstract：:Influenza viruses are recognized as one of the major causes of respiratory tract infection in young children and elderly people throughout the world. In this report, influenza B virus was detected when 200 clinical samples of nasopharyngeal aspirates, collected from hospitalized children aged from one month to three y...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2009.10.008
更新日期：2009-10-01 00:00:00
abstract：:This research aimed to study the diversity of purple nonsulfur bacteria (PNSB) and to investigate the effect of Hg concentrations in shrimp ponds on PNSB diversity. Amplification of the pufM gene was detected in 13 and 10 samples of water and sediment collected from 16 shrimp ponds in Southern Thailand. In addition to...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2015.05.014
更新日期：2016-07-01 00:00:00
abstract：:Ethnobotanical and phytochemical studies are useful to discover new drugs. Phytochemical screening is an important step in the detection of the bioactive components existing in medicinal plants that are used in traditional medicine. Very few phytochemical studies investigating medicinal plants used in traditional medi...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2020.11.013
更新日期：2021-01-01 00:00:00
abstract：:The dried plant material of medicinally important Anthemis deserti Boiss. (family: Asteraceae) especially when it remains in the powdered form often look similar to Anthemis melampodina Del.; and therefore, difficult to distinguish, finally lead to chances of adulteration. The adulteration in medicinal plants effects ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2018.09.003
更新日期：2019-01-01 00:00:00
abstract：:Foodborne pathogens are one of the major cause of food-related diseases and food poisoning. Bacterial biofilms and quorum sensing (QS) mechanism of cell-cell communication have also been found to be associated with several outbreaks of foodborne diseases and are great threat to food safety. Therefore, In the present s...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2018.04.013
更新日期：2019-02-01 00:00:00
abstract：:The paper aimed to screen out genetic markers applicable to early diagnosis for colorectal cancer and establish apoptotic regulatory network model for colorectal cancer, and to analyze the current situation of traditional Chinese medicine (TCM) target, thereby providing theoretical evidence for early diagnosis and tar...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2017.01.036
更新日期：2017-03-01 00:00:00
abstract：:Oat (Avena sativa L.) is an important fodder crop of Pakistan, though with low productivity. The present study was conducted to evaluate the performance and genetic diversity of exotic oat germplasm, with emphasis on cereal yellow dwarf virus resistance. A total of 16 exotic line (introduced from Aarhus University Den...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2020.05.042
更新日期：2020-10-01 00:00:00
abstract：:Lethal and sub lethal effects of fresh and old residues of azadirachtin, spinosad, Bacillus thuringiensis var. kurstaki (Bt var. k), and deltamethrin, were evaluated at their recommended field doses against adult and immature stages of Trichogramma brassicae under in vitro conditions. The experiments were carried out ...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章
doi：10.1016/j.sjbs.2016.04.007
更新日期：2018-05-01 00:00:00
abstract：:The present study aims to explore the crisis of antibiotic resistance and discover more about the current challenges related to self-medication. The current challenges related to antibiotic resistance are unique and differ from the challenges of the past since new bacterial pathogens are involved and continue to evolv...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.sjbs.2017.01.004
更新日期：2017-05-01 00:00:00
abstract：:Writing and publishing a scientific paper in academic journals is a highly competitive, time-consuming stepwise process. The road to scientific writing and publication is rarely straightforward. Scientific writing has uniform format, which is perplexing for the novice science writers due to its inflexible anatomy (str...
journal_title：Saudi journal of biological sciences
pub_type： 杂志文章,评审
doi：10.1016/j.sjbs.2018.01.004
更新日期：2018-11-01 00:00:00
