scholarly journals Characteristics of Industrial Wastewater Discharge in a Typical District of Taihu Watershed:A Case Study of Liyang City, Jiangsu Province

2003 ◽  
Vol 15 (2) ◽  
pp. 139-146 ◽  
Author(s):  
YANG Longyuan ◽  
◽  
FAN Chengxin ◽  
ZHANG Lu
Keyword(s):  
Industrial Wastewater ◽  
Jiangsu Province ◽  
Wastewater Discharge

Wastewater treatment and nutrient removal in the combined reactor

1998 ◽  
Vol 38 (1) ◽  
pp. 87-95 ◽  
Author(s):  
M. Roš ◽  
J. Vrtovšek
Keyword(s):  
Organic Compounds ◽  
Industrial Wastewater ◽  
Design Procedure ◽  
Order Reaction ◽  
Treated Wastewater ◽  
Nitrification Rate ◽  
Zero Order Reaction ◽  
Aerobic Reactor ◽  
Complex Organic

A combined anaerobic anoxic aerobic reactor for the treatment of the industrial wastewater that contains nitrogen and complex organic compounds as well as its design procedure is presented. The purpose of our experiments was to find a simple methodology that would provide combined reactor design. The reactor is based on the combination of anaerobic, anoxic and aerobic process in one unit only. It was found that the HRT even under 1 hour in the anaerobic zone is long enough for the efficient transformation of complex organic compounds into readily biodegradable COD which is then used in dentrification process. In the N-NO3 concentration range 1.5-50 mg/l the denitrification rate could be expressed as half-order reaction when the CODrb was in excess. N-NO3 removal efficiency is controlled by the recycle flow from the aerobic to the anoxic zone. Nitrification rate can be expressed as first, half or zero-order reaction with respect to effluent N-NH4 concentration. Nitrification rate depends on the dissolved oxygen concentration and hydrodynamic conditions in the reactor. Case study for design of a pilot plant of the combined reactor for treatment of pre-treated pharmaceutical wastewater is shown. Characteristics of pre-treated wastewater were: COD=200 mg/l, BOD5=20 mg/l, N-Kjeldahl=80 mg/l, N-NH4=70 mg/l, N-NOx<1 mg/l, P-PO4=5 mg/l. Legal requirements for treated wastewater were: COD=<100 mg/l, BOD5<5 mg/l, N-NH4=<1 mg/l, N-NOx=<10 mg/l.

scholarly journals Building and Rebuilding Buddhist Monasteries in Tang China: The Reconstruction of the Kaiyuan Monastery in Sizhou

Religions ◽  
2021 ◽  
Vol 12 (4) ◽  
pp. 253
Author(s):  
Anna Sokolova
Keyword(s):  
Economic Development ◽  
Tang Dynasty ◽  
Construction Projects ◽  
Jiangsu Province ◽  
Pivotal Role ◽  
Bai Juyi ◽  
The Social ◽  
Social And Economic Development ◽  
Its Regions

This article explores regional Buddhist monasteries in Tang Dynasty (618–907 CE) China, including their arrangement, functions, and sources for their study. Specifically, as a case study, it considers the reconstruction of the Kaiyuan monastery 開元寺 in Sizhou 泗州 (present-day Jiangsu Province) with reference to the works of three prominent state officials and scholars: Bai Juyi 白居易 (772–846), Li Ao 李翱 (772–841), and Han Yu 韓愈 (768–824). The writings of these literati allow us to trace the various phases of the monastery’s reconstruction, fundraising activities, and the network of individuals who participated in the project. We learn that the rebuilt multi-compound complex not only provided living areas for masses of pilgrims, traders, and workers but also functioned as a barrier that protected the populations of Sizhou and neighboring prefectures from flooding. Moreover, when viewed from a broader perspective, the renovation of the Kaiyuan monastery demonstrates that Buddhist construction projects played a pivotal role in the social and economic development of Tang China’s major metropolises as well as its regions.

scholarly journals Industrial Wastewater Discharge Retrieval Based on Stable Nighttime Light Imagery in China from 1992 to 2010

2014 ◽  
Vol 6 (8) ◽  
pp. 7566-7579 ◽  
Author(s):  
Zhaofu Li ◽  
Hongyu Liu ◽  
Chuan Luo ◽  
Panpan Li ◽  
Hengpeng Li ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Wastewater Discharge ◽  
Nighttime Light ◽  
Nighttime Light Imagery

scholarly journals Influence of Aquatic pH on Dissolved Pb in East Kolkata Wetlands: A Case Study With Reference to Climate Change Induced Acidification

2021 ◽  
Author(s):  
Joystu Dutta ◽  
Joysurya Dutta ◽  
Tirthankar Sen ◽  
Sufia Zaman ◽  
Abhijit Mitra
Keyword(s):  
Industrial Wastewater ◽  
Significant Negative Correlation ◽  
Regulatory Effect ◽  
Eastern India ◽  
East Kolkata Wetland ◽  
East Kolkata Wetlands ◽  
Increasing Trend ◽  
Surrounding Areas ◽  
And Shifts

Abstract The present study was undertaken with the databank of dissolved Pb and pH of the aquatic system in the East Kolkata Wetlands, an internationally unique Ramsar Site of Eastern India during a period of twenty years (2000-2019). Our study site is receiving huge amounts of domestic and industrial wastewater from surrounding areas of highly populated metropolitan city of Kolkata. The data on pH exhibits a decreasing trend with the passage of time, which may be attributed to the phenomenon of acidification in which CO2 dissolves with the water and shifts the pH to a lower value. This may result in the dissolution of accumulated Pb in the sediment and transfer the same to the overlying aquatic phase. The increasing trend of dissolved Pb confirms the hypothesis. The significant negative correlation between pH and dissolved Pb (r= -0.7763; p≤0.01) supports the view of the regulatory effect of pH on the dissolved Pb level in the aquatic systems of East Kolkata Wetland.

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