Mississippi River Water Quality and the Clean Water Act

2008 ◽  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Mississippi River ◽  
Clean Water Act ◽  
River Water Quality ◽  
Clean Water ◽  
Mississippi River Water

Changes in Mississippi River Water Quality This Century

BioScience ◽  
1991 ◽  
Vol 41 (3) ◽  
pp. 140-147 ◽  
Author(s):  
R. Eugene Turner ◽  
Nancy N. Rabalais
Keyword(s):  
Water Quality ◽  
River Water ◽  
Mississippi River ◽  
River Water Quality ◽  
Mississippi River Water

scholarly journals Pembuatan Filter Air Sungai dan Penyediaan Penampungan Air Bersih di Desa Penadaran

2021 ◽  
Vol 2 (2) ◽  
pp. 72-79
Author(s):  
Adelia Puspitasari ◽  
Agnes Oktavi Maharani ◽  
Ratih Pramitasari ◽  
Syahiful Yudhi Nugroho ◽  
Wahyuni Ainuly Umayah ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Community Service ◽  
River Water Quality ◽  
Clean Water ◽  
Quality Test ◽  
Water Filter ◽  
Central Java ◽  
Implementation Time ◽  
Water Filters

Penadaran Village is a village in Gubug District, Grobogan Regency, Central Java Province. The dry season makes residents in Penadaran Village experience problems with clean water sources. The purpose of community service is to make filters and provide clean water reservoirs for the residents of Penadaran Village. The implementation methods used are: (1) Conducting Tuntang River Water Quality Test, (2) Designing a scheme for clean water filters and reservoirs, (3) Making clean water filters and reservoirs. The location is in Kedungkakap Hamlet, Penadaran Village. The implementation time is August – October 2021. The results of the implementation of community service, obtained the results of the Tuntang River Water Quality Test, namely, Iron: 0.496 mg/L, COD: 301 mg/L, Chloride: 7.30 mg/L, manganese: 0.502 mg/ L, the river water filter scheme uses a system with 3 settling tanks and 2 mixed bed tubes. The shelter uses a 3300 ml Toren with a tower as high as 3 m from the ground. There are 17 families who have received clean water supply from the new source

Klamath River Water Quality and Acoustic Doppler Current Profiler Data from Link River Dam to Keno Dam, 2007

2008 ◽  
Author(s):  
Annett B. Sullivan ◽  
Michael L. Deas ◽  
Jessica Asbill ◽  
Julie D. Kirshtein ◽  
Kenna D. Butler ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Acoustic Doppler Current Profiler ◽  
River Water Quality ◽  
Klamath River ◽  
Current Profiler ◽  
Profiler Data

MODELING THE ORGANIC REMOVAL AND OXYGEN CONSUMPTION BY BIOFILMS IN AN OPEN-CHANNEL FLOW

1994 ◽  
Vol 30 (2) ◽  
pp. 53-61 ◽  
Author(s):  
Shiyu Li ◽  
Guang Hao Chen
Keyword(s):  
Water Quality ◽  
Oxygen Consumption ◽  
River Water ◽  
Channel Flow ◽  
Diffusion Layer ◽  
Open Channel ◽  
Open Channel Flow ◽  
River Water Quality ◽  
Monod Kinetics ◽  
Organic Removal

A mathematical model is proposed to predict the removal of dissolved organic substances and the consumption of dissolved oxygen by attached biofilms in an open-channel flow. The model combines the biofilm equations with the conventional Streeter–Phelps type equations of river water quality by considering the mass transfer of organics and oxygen in the river water through the diffusion layer into the biofilm. It is assumed that the diffusion and reaction within the biofilm are of steady-state, and follow Monod kinetics. The model is solved numerically with a trial-and-error method. The simulation results of the model for an ideal case of river flow and biofilm show that the organic removal rate and oxygen consumption rate caused by the biofilm are greater than that by suspended biomass. The effects of diffusion layer thickness, flow velocity, and biofilm thickness on the change of river water quality are discussed.

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