A novel anaerobic treatment system, the anaerobic migrating blanket reactor (AMBR), was developed after completing a parallel study with upflow anaerobic sludge blanket (UASB) and anaerobic sequencing batch reactor (ASBR) processes. Using sucrose as the main component of a synthetic wastewater, the AMBR achieved a maximum chemical oxygen demand (COD) loading rate of 30 g.l .day 1 at a 12-h hydr...

In addition to N load, cold weather nitrification is an important consideration for stabilized performance of biological processes applied to continuous animal production systems. A winter simulation experiment was conducted in the laboratory to evaluate performance of immobilized bacteria for treatment of swine wastewater under cold weather conditions. Bench fluidized reactors (1.2 L) containi...

During the COVID-19 pandemic, wastewater-based epidemiology (WBE) has proven to be an effective tool for monitoring prevalence of SARS-CoV-2 in urban communities. However, low-cost, simple, and reliable wastewater sampling techniques are still needed promote widespread adoption WBE many countries. Since their first use public health surveillance 1950s, types passive samplers have been proposed,...

During the COVID-19 pandemic, use of disinfectants, alcohol-based hand sanitizers, and antiseptic wash has surged. As a precaution, many authorities have also increased chlorine dosage in wastewater disinfection to achieve free residual concentration greater than 6.5 mg/liter (1), despite evidence that just above 0.5 can completely inactivate human coronavirus (2). These chemicals reach aquatic...

Aims: This study investigates the comparative effects of synthetic car wash and a bio-based surfactant detergent, biotensidon, on soil environment.
 Study Design: Evaluation studies.
 Place Duration Study: Geology Woodland laboratory at William Smith Building, University Keele, in 2018.
 Methodology: 1000 g Topsoil purchased from local store was dried oven 1100C for 24 hours its ...

Erratum: “Radionuclides in Fracking Wastewater: Managing a Toxic Blend” The Focus article “Radionuclides in Fracking Wastewater: Managing a Toxic Blend” [Environ Health Perspect 122:A50–A55 (2014); http://dx.doi.org/10.1289/ehp.122-A50] incorrectly stated that Pennsylvania requires pit liners for temporary impoundments and disposal to have a minimum thickness of 30 mm. The correct minimum thick...