The aim of this study was to apply loess balls containing effective microorganisms (EM) to the remediation of contaminated harbor sediments, and to thereby elucidate the functions of EM in remediation. Changes in physicochemical, biochemical, and microbiological parameters were measured to monitor the remediation process at a laboratory scale. Treatment with high concentrations of EM stock cult...

BACKGROUND A novel implementation of a hybrid membrane bioreactor (HMBR) has been studied in this paper. It is utilized as combination of rotating biological contractor (RBC) and an external membrane, as a new biological system for oily wastewater treatment. METHODS Chemical oxygen demand (COD) and total petroleum hydrocarbon (TPH) as factors of Biodegradability has been evaluated. They are b...

The current energy and environmental crisis, linked to increasing industrialisation, has progressively driven the adoption of solutions focused on circular life cycle thinking, such as waste management with resource recovery decarbonization technologies. In this context, study was built quantify performance a two-stage wastewater treatment process (dark fermentation anaerobic digestion) in whic...

H E I K E K N I C K E R , * , † D I R K B R U N S N A G E L , ‡ O L I V E R D R Z Y Z G A , ‡ E B E R H A R D V O N L Ö W , ‡ A N D K L A U S S T E I N B A C H § Department of Soil Science, Technische Universität München, D-85350 Freising-Weihenstephan, Germany, Institute of Immunology and Environmental Hygiene, Philipps Universität Marburg, Pilgrimstein 2, D-35037 Marburg, Germany, and Departm...

We analyze the application of optical molasses to a thermal vapor cell to make and collect cold atoms. Such an arrangement would simplify the production of cold atoms by eliminating the difficulty of first having to produce and slow an atomic beam. We present the results of our calculations, computer models, and experimental work. As a guide for future work, general results are given to illustr...

This paper reported the pollutant removal performances of a hybrid wetland system for the treatment of aquaculture wastewater. The system consisted of two treatment stages: a subsurface vertical flow (VF) wetland, followed by a horizontal flow (HF). The aquaculture wastewater with the different concentrations such as eutrophy and mesotrophy was treated using hybrid constructed wetland. The expe...

In many regions of the world, urban water systems will need to transition into fundamentally different forms to address current stressors and meet impending challenges-faster innovation will need to be part of these transitions. To assess the innovation deficit in urban water organizations and to identify means for supporting innovation, we surveyed wastewater utility managers in California. Ou...