Journal of Environmental Engineering: Recent submissions
Now showing items 461-480 of 6477
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Turn up the Dial: System Dynamics Modeling of Resource Allocations toward Rural Water Supply Maintenance in East Africa
(ASCE, 2022-01-31)Water stress is increasingly affecting hundreds of millions of people around the world. In East Africa, severe and persistent drought periods negatively impact health and livelihoods. Drought increases reliance on mechanized ... -
Evaluation of Modeling Approaches for Sorption–Desorption Processes in Flow-Through Soil Columns
(ASCE, 2022-01-27)The influence of soil organic matter and pore water velocity on the transport of naphthalene in flow-through columns was investigated. Pulse injection experiments were conducted using three different soils (with 0%, 1.9%, ... -
Selective Proliferation of Antibiotic-Resistant Bacteria in the Biological Treatment Process at a Municipal Wastewater Treatment Plant in India
(ASCE, 2022-02-07)There are mixed opinions on whether municipal wastewater treatment plants (MWTP) act as a significant hub for the selective growth and proliferation of antibiotic-resistant bacteria. In this study, investigations were ... -
Treatment of an Aerobic Digester Sidestream in a Microbial Fuel Cell: Nitrate Removal and Electricity Generation
(ASCE, 2022-01-24)Aerobic digestion of waste activated sludge is a common practice at water reclamation facilities. Dewatering of digester effluent produces a liquid stream, commonly referred to as a sidestream, that is rich in nitrogen and ... -
Sessile and Planktonic Microbial Taxonomy of a Methanogenic Cellulolytic Enrichment Reactor Sourced from the Organic Fraction of Municipal Solid Waste
(ASCE, 2022-01-27)The bacterial, archaeal, and fungal taxonomies of a semi-batch-fed, lab-scale cellulolytic enrichment reactor inoculated by the organic fraction of municipal solid waste were explored using 16SrRNA and internal transcribed ... -
Study on Nitrogen Transfer in the Symbiotic Ecosystem between Tubificidae and Microbes
(ASCE, 2021-12-21)A lab-scale study of the symbiotic ecosystem between Tubificidae and microbes (SETM) was carried out. The sludge reduction ability and ammonia removal performance of the system were investigated, and the nitrogen transfer ... -
Calcium Hypochlorite Pretreatment Enhances Waste-Activated Sludge Degradation during Aerobic Digestion
(ASCE, 2022-01-24)Conventional activated sludge processes, as the main biological treatment approach for municipal wastewater treatment in centralized wastewater treatment plants (WWTP), generate a large amount of waste-activated sludge ... -
Hydrogen Peroxide Quenching with Mineral Catalysts after UV/H2O2 Advanced Oxidation
(ASCE, 2021-12-31)This study explored mineral catalysts for H2O2 quenching after UV/H2O2 advanced oxidation as an alternative to granular activated carbon or chlorine (two of the most common methods). The following mineral catalysts were ... -
Aqueous Film-Forming Foam Treatment under Alkaline Hydrothermal Conditions
(ASCE, 2021-12-09)Historical use of aqueous film-forming foam (AFFF) has led to widespread contamination of water and soil, due to the high per- and polyfluoroalkyl substance (PFAS) content in AFFF. Due to the high toxicity and environmental ... -
Predictive Maintenance of Stormwater Infrastructure Using Internet-of-Things Technology
(ASCE, 2021-12-10)Operations and maintenance (O&M) practices are becoming increasingly scrutinized as storm events become more frequent and intense, surpassing the design storms that dictated the original capacity. In order to get the ... -
A Case Study of Community-Engaged Design: Creating Parametric Insurance to Meet the Safety Needs of Fisherfolk in the Caribbean
(ASCE, 2021-12-22)The creation of the Caribbean Ocean and Aquaculture Sustainability faciliTy (COAST) is used as a case study of community-engaged design addressing safety needs. COAST is a parametric insurance product, sold to national ... -
Ammonium Removal and Potential Microbial Interactions under Oxygen-Limited Conditions
(ASCE, 2022-02-09)Some microorganisms with the nitrification function can carry out nitrogen conversion under oxygen-limited conditions. In this study, a continuous-flow biofilm reactor was operated to investigate the removal of ammonium ... -
Inactivation of Giardia Cysts by Ozone after Residual Disappearance
(ASCE, 2021-12-15)Kinetic models for inactivation of microorganisms by chemical disinfectants have described the instantaneous rate of kill as a function of the instantaneous residual. Laboratory batch experiments were conducted exposing ... -
Affordable Pretreatment Strategy for Mitigation of Biofouling in Drinking-Water Systems
(ASCE, 2021-11-30)Biofouling triggers a chain of events that are deleterious to engineered systems providing safe water to the population and industry. The frequent use of dissolved biocides to combat biofilm growth has its own drawbacks, ... -
Taguchi Optimization of Operating Conditions of a Microfiltration Alumina Ceramic Membrane and Artificial Neural-Network Modeling
(ASCE, 2022-01-20)A comprehensive study using a novel aluminum oxide microfiltration (MF) membrane and a thorough analysis of the effects of various operating conditions on the treatment of produced water were carried out. To set up the ... -
Laccase-Driven 17β-Estradiol Humification in the Presence of Humic Acids at Varying pH Levels
(ASCE, 2021-11-27)Estrogens posing huge eco-environmental risks are universally found in water ecosystems. Laccase, as a multicopper oxidoreductase, can evoke humification and polymerization of estrogens to reduce their biotoxicity and ... -
Impact of Buffering Agent on Lead Adsorption of Bentonite: An Appraisal
(ASCE, 2021-12-09)The knowledge of adsorption characteristics of bentonite (B) is mandatory for heavy metals removal from the wastewater and contaminant retention in landfill liner. Adsorption characterization of geomaterials requires the ... -
Modeling PFAS Removal Using Granular Activated Carbon for Full-Scale System Design
(ASCE, 2021-12-16)Per- and polyfluoroalkyl substances (PFAS) are increasingly of interest to drinking water utilities due to state regulations, the release of federal and state health advisories, and public concern. Pilot-scale data were ... -
Experimental Study on the NO Oxidation and Removal by Heterogeneous Fenton Reaction
(ASCE, 2021-11-12)For low-temperature flue gas, there is still no efficient and economic denitration technology. The oxidation absorption method can be believed as a new popular choice. Heterogeneous Fenton reaction is a more promising ... -
A Practical Statistical Method to Differentiate Inflow and Infiltration in Sanitary Sewer Systems
(ASCE, 2021-11-12)Besides collecting legitimate wastewater, municipal sanitary sewer systems, even when separated from storm sewer systems, also receive unwanted inflow and infiltration (I/I) that adversely impact their sizing, economics, ...