scholarly journals REMOVAL OF MERCURY COMPOUNDS WITH USE OF CARBON SORBENTS IN PROCESS OF WASTEWATER TREATMENT

2019 ◽  
pp. 46-61
Author(s):  
Елена Фарберова ◽  
◽  
Анастасия Трапезникова ◽  
Дмитрий Шадрин ◽  
Елена Тиньгаева ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Carbon Sorbents ◽  
Mercury Compounds

scholarly journals Treatment of waste water containing chromium (VI)

2020 ◽  
pp. 4-10
Author(s):  
Kundyz Sovetova ◽  
Akmaral Ismailova
Keyword(s):  
Wastewater Treatment ◽  
Natural Waters ◽  
Wheat Grains ◽  
Carbon Sorbents ◽  
Chromium Vi ◽  
Sorption Method ◽  
Chromium Compounds ◽  
Method Of Extraction ◽  
Effective Sorbent ◽  
Prospects Of Application

In the production of chromium and in the process of transportation of chromiumcontaining materials, contamination of natural waters and soils with chromium compounds inevitably occurs. In this paper, the sorption of chromium (VI) ions with carbon sorbents is studied as a method for treating waste and natural water contaminated with chromiumcontaining compounds. Sorption method of extraction and concentration of elements is one of the most effective and simple technological method of chromium extraction. For extraction of chromium (VI), carbon sorbents obtained from recycling of wheat grains waste (RWGW) (wheat husk or bran) modified with ammonium nitrate were used. RWGW (recycling of wheat grains waste) + NH4NO3 (3%), RWGW (recycling of wheat grains waste) + NH4NO3 (5%), RWGW (recycling of wheat grains waste) + NH4NO3 (7%) were used. Chromium sorption was investigated depending on various factors. It has been established that the most effective sorbent is RWGW (recycling of wheat grains waste) + NH4NO3 (3%), with which it is possible to extract chromium by 98% from solutions at pH=1 in 30 min. This sorbent has been tested for industrial wastewater treatment containing up to 36 mg/L of chromium (VI) ions. The metal recovery rate was 95.2%. The obtained results indicate the prospects of application of RWGW (recycling of wheat grains waste) + NH4NO3 (3%) for wastewater treatment from chromium (VI).

Mercury Study Report to Congress: Volume V: Health Effects of Mercury and Mercury Compounds

1997 ◽  
Author(s):  
Beth Hassett-Sipple ◽  
Jeff Swartout ◽  
Rita Schoeny ◽  
Kathryn R. Mahaffey ◽  
Glenn E. Rice
Keyword(s):  
Health Effects ◽  
Mercury Compounds ◽  
Study Report

Possibilities of Scintigraphic Detection of Tumours and Damaged Tissues with the Aid of Radioactive Mercury Compounds

1972 ◽  
Vol 11 (03) ◽  
pp. 247-253
Author(s):  
B. Vavrejn ◽  
L. Kronrád ◽  
I. Petrboková
Keyword(s):  
Mercury Compounds

Die Speicherung von 197Hg-Quecksilbercysteinide wurde in vier Arten von experimentellen Tumoren untersucht. Die Ergebnisse zeigten keine höhere Tumorspeicherung im Vergleich zum 197Hg-Quecksilbertetracycline oder 197Hg-Quecksilberazetat. Die Möglichkeit einer Verwendung von 197Hg-cysteinid zur Diagnose eines Herzinfarktes wurde bestätigt.

RESEARCH AND EVALUATE TREATMENT EFFICIENCY ON TAPIOCA PROCESSING INDUSTRIAL WASTEWATER BY AEROBIC BIOFILTER TECHNOLOGY WITH VARIOUS MATERIALS

2010 ◽  
Vol 13 (3) ◽  
pp. 54-66
Author(s):  
Phuong Thi Thanh Nguyen ◽  
Phuoc Van Nguyen ◽  
Anh Cam Thieu
Keyword(s):  
Wastewater Treatment ◽  
Industrial Wastewater ◽  
Utilization Rate ◽  
Organic Loading ◽  
Treatment Efficiency ◽  
Research Results ◽  
Loading Rates

This study was performed to evaluate the efficiency of tapioca processing wastewater treatment using aerobic biofilter with variety of biofilter media: coir, coal, PVC plastic and Bio - Ball BB15 plastic. Research results in the lab demonstrated all four aerobic biofilter models processed can treated completely N and COD which COD reached 90-98% and N reached 61-92%, respectively, at the organic loading rates in range of 0.5, 1, 1.5 and 2 kgCOD/m3.day. The results identified coir filter was the best in four researched materials with removal COD and specific substract utilization rate can reach 98%, and 0.6 kg COD/kgVSS.day. Research results open the new prospects for the application of the cheap materials, available for wastewater treatment.

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