scholarly journals Basic Study on Ammonium Reduction of Livestock Wastewater Utilizing Bio-charcoal Water Quality Purifying

2017 ◽  
Vol 46 (4) ◽  
pp. 215-218
Author(s):  
Hiroyuki HARADA ◽  
Katsuya OHIRA ◽  
Takuya MARUMOTO ◽  
Kayo GOUYA
1996 ◽  
Vol 34 (7-8) ◽  
pp. 163-168
Author(s):  
Keigo Nakamura ◽  
Yukihiro Shimatani

Chemical and biotic indices of water quality have some problems. They need a lot of time to measure and technology, therefore we considered evaluating water color objectively and quantitatively. This method is as follows; after filtering sampling water on the glass fiber filter, absorbance spectrum of this filter is measured by the spectrophotometer. This method does not need, technology and cost. We surveyed the relation between absorbance spectrum and conventional water indices. As a result, this method is very effective to evaluate water quality change from the water color point of view abd it can also evaluate turbidity and Chlorophyll-a very easily. We expect this method to lead to a new water quality index.


2006 ◽  
Vol 77 (2) ◽  
pp. 253-258 ◽  
Author(s):  
Yasuo TANAKA ◽  
Hideaki SHINOZAKI ◽  
Korefumi WATANABE ◽  
Tatsuma MORI ◽  
Yoshinori YABUKI ◽  
...  

2009 ◽  
Vol 80 (1) ◽  
pp. 83-90
Author(s):  
Yasuo TANAKA ◽  
Tatsuma MORI ◽  
Yoshinori YABUKI ◽  
Nobuyuki AIKO ◽  
Takahide WATANABE ◽  
...  

2003 ◽  
Vol 47 (7-8) ◽  
pp. 209-216 ◽  
Author(s):  
C.-M. Kao ◽  
K.-F. Chen ◽  
Y.-L. Liao ◽  
C.-W. Chen

The Kaoping River basin is the largest and the most intensively used river basin in Taiwan. It is 171 km long and drains a catchment of more than 3,250 km2. Based on the current water quality analysis, the Kaoping River is heavily polluted. Concern about the deteriorating condition of the river led the Government of Taiwan to amend the relevant legislation and strengthen the enforcement of the discharge regulations to effectively manage the river and control the pollution. Investigation results demonstrate that both point and non-point source pollutants are now the causes of biochemical oxygen demand (BOD), nutrients, and pathogens in the river. The main water pollution sources are livestock wastewater from hog farms, municipal wastewater, industrial wastewater, non-point source (NPS) pollutants from agricultural areas, and leachate from riverbank landfills. The current daily BOD, NH3-N, and TP loadings to Kaoping River are 74,700, 39,400, and 5,100 kg, respectively. However, the calculated BOD, NH3-N, and TP carrying capacities are 27,700, 4,200, and 600 kg per day. To protect public health and improve the river water quality, a comprehensive management and construction strategy is proposed. The proposed strategy includes the following measures to meet the calculated river carrying capacity: (1) a hog ban in the entire Kaoping River basin, (2) sewer system construction to achieve 30% of connection in the basin within 10 years, (3) removal of 10 riverbank landfills, and (4) enforcement of the industrial wastewater discharge standards. After the implementation of the proposed measures, the water quality should be significantly improved and the BOD and nutrient loadings can be reduced to below the calculated carrying capacities.


2020 ◽  
Vol 28 (2) ◽  
pp. 172-182
Author(s):  
Priscila Jackeline Arias Ordonez

In developing countries, tropical wetlands are essential for human livelihoods since they storage and provide freshwater for domestic, industrial, and agricultural uses. Unfortunately, tropical wetlands are subjected to anthropogenic impacts, such as direct discharge of municipal, industrial and livestock wastewater, leading to water pollution, and thus, affecting directly or indirectly people's health. Therefore, water quality assessment of these unique ecosystems using practical tools, such as Water Quality Index (WQI) is of great importance. This study aims to assess the water quality of one tropical Ramsar wetland La Tembladera for human consumption in wet and dry tropical seasons using WQI. This index was calculated using the following physical, chemical, and biological parameters: potential hydrogen (pH), turbidity, electrical conductivity (EC), dissolved oxygen (DO), biological oxygen demand (BOD5), chloride ions (Cl-), sulfates (SO42-), nitrates (NO3-), iron (Fe2+), Escherichia coli ( E. coli ), and Clostridium perfringens ( C. perfringens ). The WQI calculations revealed high values for the wet and dry tropical seasons, displaying values of 416.63 and 427.1, respectively. The obtained values indicate that the water of La Tembladera wetland is unsuitable for human consumption. These results might be valuable for legislative decision-makers to develop further recommendations and plans to improve the water quality, either for drinking purposes or other needs.


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