Turbidity Monitoring Articles

366 Results found
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  • Subcategory: Turbidity Monitoring ×

An investigation into the effectiveness of sand media amended with biochar to remove BOD5, suspended solids and coliforms using wetland mesocosms

by IWA Publishing  (May 18, 2015)

Constructed wetland ecotechnologies (CWEs) are a promising solution to effectively treat domestic wastewater in developing countries at low cost. This paper reports the findings of the effectiveness of sand media amended with woody biochar and two plants species (Melaleuca quinquenervia and Cymbopogon citratus) in removing biological oxygen ...

Treatment performances of French constructed wetlands: results from a database collected over the last 30 years

by IWA Publishing  (May 7, 2015)

Approximately 3,500 constructed wetlands (CWs) provide raw wastewater treatment in France for small communities (<5,000 people equivalent). Built during the past 30 years, most consist of two vertical flow constructed wetlands (VFCWs) in series (stages). Many configurations exist, with systems associated with horizontal flow filters or ...

A study on the effects of ozone dosage on dissolved-ozone flotation (DOF) process performance

by IWA Publishing  (May 7, 2015)

Dissolved-ozone flotation (DOF) is a tertiary wastewater treatment process, which combines ozonation and flotation. In this paper, a pilot-scale DOF system fed by secondary effluent from a wastewater treatment plant (WWTP) in China was used to study the effect of ozone dosage on the DOF process performance. The results show that an ozone dosage ...

Characteristics of suspended solids affect bifenthrin toxicity to the calanoid copepods, Eurytemora affinis and Pseudodiaptomus forbesi

by John Wiley & Sons, Ltd.  (May 2, 2015)

Bifenthrin is a pyrethroid pesticide that is highly toxic to aquatic invertebrates. The dissolved concentration is generally thought to be the best predictor of acute toxicity. However, for the filter feeding calanoid copepods, Eurytemora affinis and Pseudodiaptomus forbesi, ingestion of pesticide‐bound particles could prove to be another route ...

Performance of a pilot showcase of different wetland systems in an urban setting in Singapore

by IWA Publishing  (Apr. 27, 2015)

The Alexandra Wetlands, part of PUB's Active, Beautiful, Clean Waters (ABC Waters) Programme, showcase a surface flow wetland, an aquatic pond and a sub-surface flow wetland on a 200 m deck built over an urban drainage canal. Water from the canal is pumped to a sedimentation basin, before flowing in parallel to the three wetlands. Water ...

Pathogen removal from domestic and swine wastewater by experimental constructed wetlands

by IWA Publishing  (Apr. 27, 2015)

This study examined the performance of subsurface flow horizontal wetlands in total coliforms, faecal coliforms, enterococci and Salmonella removal from swine and domestic wastewaters. The effects of organic loading rate, contact time (CT) and the presence of aquatic macrophytes, Typha dominguensis and Typha latifolia, on treatment performance ...

Clofibric acid and gemfibrozil removal in membrane bioreactors

by IWA Publishing  (Apr. 27, 2015)

The removal of two blood lipid regulators, clofibric acid (CLA) and gemfibrozil (GFZ), was evaluated using two identical aerobic membrane bioreactors with 6.5 L effective volume each. Polysulfone ultrafiltration hollow fiber membranes were submerged in the reactors. Different operating conditions were tested varying the organic load (F/M), ...

Portable UVT Reigns Supreme - Case Study

by Partech (Electronics) Ltd.  (Apr. 22, 2015)

It may be small, but my word it’s effective. One of the newest products into the Partech catalogue, the Sensorex Portable UVT, has already proved its worth in challenging conditions within demanding industry trial. The convenient, user-friendly transmittance instrument with its world leading UV-C LED technology was tested alongside more ...

Comparative analysis of groundwater fluorine levels and other characteristics in two areas of Laizhou Bay and its explanation on fluorine enrichment

by IWA Publishing  (Apr. 8, 2015)

The groundwater characteristics in two areas, Tushan town (TS) in Laizhou County and Puzhuang town (PZ) in Changyi County, were compared to discuss the dynamics of fluorine enrichment. Groundwater has average fluorine levels of 2.33 mg/L in PZ town ranging from 0.65 to 9.87 mg/L and of 0.91 mg/L ranging from 0.27 to 1.25 mg/L in TS town. The ...

Pollution of surface runoff from the territory of Brest, Belarus

by IWA Publishing  (Apr. 8, 2015)

The assessment of the influence of urban surface runoff on the quality of river water in the city of Brest was made. Surface runoff was studied in two phases (winter and summer) for the following parameters: pH, total suspended solids (TSS), concentration of chloride, nitrate, phosphate and ammonium ions, total oils. The results show that urban ...

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