Robert Thomas Bachmann
University of Kuala Lumpur
ChemistryBiomassPyrolysisWaste managementBiochar
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Publications 46
#1Padmini Karananidi (University of Kuala Lumpur)
#2Amelia Md Som (University of Kuala Lumpur)
Last. Robert Thomas Bachmann (University of Kuala Lumpur)H-Index: 16
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Abstract Kon-Tiki kilns have been recommended as an easy-to-use, affordable yet environment-friendly approach to produce biochar. The flame curtain technology has been tested on a limited range of ligno-cellulosic biomass; therefore, this study explored the operation and performance of earth (EKT) and metal (MKT) Kon-Tiki kilns using abundantly available tropical oil palm frond (OPF). The apparent carbon sequestration potential (CSP) was estimated based on the H/Corg ratio method. Our results de...
#1Muhammad Khalid Rafiq (Lanzhou University)H-Index: 4
#2Yanfu Bai (Lanzhou University)H-Index: 2
Last. Long Ruijun (Lanzhou University)H-Index: 4
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Abstract Previous biochar research has primarily focused on agricultural annual cropping systems with very little attention given to highly fragile, complex and diverse natural alpine grassland ecosystems. The present study investigated the effect of biochar on the growth of alpine meadows and soil health. This study was conducted in the Qinghai Tibetan Plateau over a three year period to investigate the effect of three rice husk biochar application rates alone and combination with high and low ...
1 CitationsSource
#1Mussarat Saleem (University of Kuala Lumpur)
#2Amtul Jamil Sami (University of the Punjab)H-Index: 6
Last. Robert Thomas Bachmann (University of Kuala Lumpur)H-Index: 16
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Abstract Low molecular weight (MW) peptides are an attractive choice for bench scale coagulation tests. In this study, water soluble seed proteins from Moringa oleifera were fractionated, characterised and screened for coagulant activity. Seed proteins were extracted from defatted M. oleifera using distilled water, followed by adjustment to pH 7 and sequential ammonium sulphate precipitation. Positive coagulant activity was observed for 40 wt% fraction that was found to contain a mixture of 6 pe...
BACKGROUND: Previous studies of nurses' critical thinking skills that included demographic characteristics as determinants have been inconclusive. This study explored demographic determinants of critical thinking skills among nurses from public hospitals in Peninsular Malaysia. METHOD: This cross-sectional study included 549 nurses recruited via multistage cluster sampling. Nurses completed the demographic questionnaire and Health Sciences Reasoning Test (HSRT). RESULTS: The majority of responde...
#1Nadly Aizat Nudri (UPM: Universiti Putra Malaysia)
#2Robert Thomas Bachmann (University of Kuala Lumpur)H-Index: 16
Last. Atiyyah Ameenah Azni (UPM: Universiti Putra Malaysia)H-Index: 1
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Mankind’s quest to reduce its dependency on fossil fuel involves biomass as a promising alternative. However, direct application of raw biomass faces problems such as high moisture content, low heating value, and poor grindability. Pyrolysis is one of the pre-treatment methods to improve biomass properties particularly its energy density. This study is aimed at investigating the pyrolysis of oil palm trunk (OPT) into biocoal and its suitability for solid fuel applications in terms of slagging an...
Last. Robert Thomas BachmannH-Index: 16
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Last. S. K. Ong
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#1Sheela Subramanian (University of Kuala Lumpur)
#2Aiza Syuhaniz Salleh (University of Kuala Lumpur)
Last. Md. Sohrab Hossain (Universiti Sains Malaysia)H-Index: 11
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#1Md. Sohrab Hossain (Universiti Sains Malaysia)H-Index: 11
#2Fatehah Mohd Omar (Universiti Sains Malaysia)H-Index: 4
Last. Mohd Omar Ab Kadir (Universiti Sains Malaysia)H-Index: 11
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Abstract Palm oil mill effluent (POME) is a highly polluted industrial wastewater that may cause detrimental environmental pollution if discharged directly due to its biochemical oxygen demand (BOD) and chemical oxygen demand (COD) concentrations. In the present study, the performance of FeSO4.7H2O waste from titanium oxide industry was investigated in removing BOD, COD, and total suspended solids (TSS) from POME. Jar tests were conducted with varying coagulant doses (1–5 g L−1), pH (2–10), and ...
2 CitationsSource
#1Mussarat Saleem (University of Kuala Lumpur)H-Index: 2
#2Robert Thomas Bachmann (University of Kuala Lumpur)H-Index: 16
Abstract Conventional coagulants, like aluminium sulphate and ferric chloride, are used in potable water treatment and involve non-sustainable mining and transformation of raw materials for their production with costly sludge disposal. Natural coagulants are mostly obtained from bacteria, fungi, animals and plants and are classified as polysaccharide, amino-polysaccharide, poly-phenols and proteins-based substances. Plant-based coagulants extracted from Moringa oleifera, Strychnos potatorum Linn...
2 CitationsSource