Design of Atmospheric, Open-Bottom Mud/Gas Separators

1985 ◽  
Author(s):  
D. Butchko ◽  
G.E. Davies ◽  
G.T. Fuchs ◽  
R.R. Reid
Keyword(s):  
Bottom Mud

The Monitoring and Ecological Evaluation of Beng River Sediment for Heavy Metals (Hg,Pb,Cr)

2014 ◽  
Vol 675-677 ◽  
pp. 345-349
Author(s):  
Ji Cai Qiu
Keyword(s):  
Heavy Metals ◽  
Risk Index ◽  
Potential Ecological Risk ◽  
Index Method ◽  
Ecological Risk Index ◽  
Ecological Evaluation ◽  
Main Research ◽  
Bottom Mud ◽  
River Reach ◽  
Very High

In order to analysis the Heavy metals in the bottom mud at beng river, we put the river reach between the bridge of beng river beside the er’huang road and the bridge beside the yin’meng road as the main research object, survey 14 transects of bottom mud from three indications (Hg,Pb,Cr) of the river and build a relate standards about the pollution of bottom mud depend on the domestic standards, in this paper, we use the potential ecological risk index method which was putted forward by Swedish scientists Hakanson as the criterion of the pollution about heavy metals in the mud. The results show that: at the rive reach mentioned above, we found there are very high heavy metals content in the bottom mud.

scholarly journals Purification of closed sea area by the bottom mud modifier.

1996 ◽  
Vol 25 (8) ◽  
pp. 458-461
Author(s):  
Takashi NEMOTO ◽  
Nobuyuki NISHINO ◽  
Yutaka MATSUO
Keyword(s):  
Bottom Mud ◽  
Sea Area

scholarly journals EVALUATION OF APPLICABILITY OF BOTTOM MUD CURLING SUPPRESSION TECHNOLOGY BY ENZYME CATALYTIC METHOD FOR SEAFLOOR SEDIMENT

2018 ◽  
Vol 74 (2) ◽  
pp. I_270-I_275
Author(s):  
Yusui MURATA ◽  
Toshiro HATA ◽  
Shintaro KAGIMOTO ◽  
Satoshi MATSUMURA ◽  
Takaaki MIZUTANI
Keyword(s):  
Catalytic Method ◽  
Bottom Mud ◽  
Seafloor Sediment

scholarly journals A PLACING METHOD OF LARGE AMOUNT OF HARDENED BOTTOM MUD INTO WATER

2001 ◽  
Vol 17 ◽  
pp. 253-258
Author(s):  
Toshihisa HATANO ◽  
Takahumi KISHIGUTI ◽  
Michio GOTO ◽  
Kyoichi NAGASE ◽  
Minoru SAITOU ◽  
...  
Keyword(s):  
Bottom Mud

scholarly journals RESEACH ON PRESUMPTION OF THE SULFIDE CONDENTRATION OF THE WATERS BOTTOM MUD SURFACE BY A BOTTOM MUD COLOR SYSTEM

2012 ◽  
Vol 68 (2) ◽  
pp. I_588-I_593
Author(s):  
Kouichi YAKITA ◽  
Kiyoshi TAKIKAWA ◽  
Kazumi AKIMOTO ◽  
Tatsuya MASUDA ◽  
Kentaro MORIMOTO ◽  
...  
Keyword(s):  
Color System ◽  
Bottom Mud

scholarly journals Adsorption and migration of heavy metals between sediments and overlying water in the Xinhe River in central China

2021 ◽  
Author(s):  
Yanqi Zhao ◽  
Ying Yang ◽  
Rongkun Dai ◽  
Sobkowiak Leszek ◽  
Xinyi Wang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Anthropogenic Activities ◽  
Great Influence ◽  
Central China ◽  
Overlying Water ◽  
Riverbed Sediments ◽  
Static Water ◽  
Bottom Mud ◽  
And Migration ◽  
The Impact

Abstract Long-term polluted rivers often lead to the accumulation of heavy metals in sediments. Anthropogenic activities or biological disturbances break the adsorption balance, causing them to return from the bottom mud to the overlying water and change the aquatic environment. In order to understand the variation of heavy metals between sediments and river water, we collected the riverbed sediments in the polluted Xinhe River and carried out static continuous infiltration and dynamic uninterrupted disturbance experiments. The leaching experiment shows that the absorbability of Cd and Pb is stronger than Cr in the sediment; at the same time, the properties of the medium have a great influence on the adsorption of heavy metals. The disturbance can prompt heavy metals in the sediment to resuspend into the overlying water. The impact is the greatest during the first 12 h, and the influence degree is stronger in the relatively static water than in the moving river. In addition, pH and other factors have different degrees of influence on the desorption of heavy metals.

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