Вестник КазНУ. Серия химическая. 2020; 99: 4-10
Очистка сточных вод содержащих хром (VI)
https://doi.org/10.15328/cb1113Аннотация
При производстве хрома и в процессе транспортировки хромсодержащих материалов неизбежно происходит загрязнение природных вод и почв соединениями хрома. В данной работе исследована сорбция ионов хрома (VI) углеродными сорбентами, как способ очистки сточных и природных вод, загрязненных хромосодержащими соединениями. Сорбционный метод извлечения и концентрирования является одним из наиболее эффективных и простых технологических способов выделения хрома. Для извлечения хрома (VI) применяли углеродные сорбенты, полученные из отходов переработки пшеничного зерна ОППЗ (шелуха или отруби пшеничного зерна), модифицированные аммиачной селитрой. Были использованы ОППЗ+NH4NO3 (3%), ОППЗ+NH4NO3 (5%), ОППЗ+NH4NO3 (7%). Сорбцию хрома исследовали в зависимости от различных факторов. Установлено, что наиболее эффективным сорбентом является ОППЗ+NH4NO3 ( 3%), с помощью которого за 30 мин удаётся извлекать хром на 98% из растворов при рН=1. Данный сорбент был апробирован для очистки промышленных сточных вод содержащих до 36 мг/л ионов хрома (VI). Степень извлечения металла составила 95,2%. Полученные результаты свидетельствуют о перспективности применения сорбента ОППЗ+NH4NO3 (3%) для очистки сточных вод от соединений хрома (VI).
Список литературы
1. Mamyrbaev АА (2012) Toxicology of chromium and its compounds [Toksikologiya khroma i yego soyedineniy]. Kokzhiek, Aktobe, Kazakhstan. P.7-8. (In Russian)
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3. Kokanbaev AK (2013) Surface processes [Bettik qubılıstar]. Almaty, Kazakhstan. ISBN 978-601-80333-5-3. (In Kazakh)
4. Girish K, Mutkhazelvi P (2006) J Anal Chem+ 61:33-36. https://doi.org/10.1134/S1061934806010072
5. GN 2.1.5.2280–07. Maximum permissible concentrations (MPC) of chemicals in water of water objects of economic, drinking, cultural, and household water use. Additions and changes №1 to GN 2.1.5.1315–03. (In Russian)
6. Zlobina E, Daminova А (2013) Extraction of chromium [Ekstraktsiya khroma]. Lambert Academic Publishing, Moscow, Russia. P.10-12. (In Russian)
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8. Anikin VYu, Basargin NN, Kosolapova NI, Rozovskiy YuG (2008) Factory laboratory. Diagnostics of materials [Zavodskaya laboratoriya. Diagnostika materialov] 74:15-19. (In Russian)
9. Suvardhan K, Suresh Kumar K, Rekha D, Kiran K, Jaya Raj B, Chiranjeevi P (2007) Journal of Analytical Chemistry [Zhurnal Analiticheskoi Khimii] 62(4):376-381.
10. Leykin YuА (2015) Physico-Chemical Bases of Polymer Sorbents Synthesis. BINOM, Moscow, Russia. P.15-17. (In Russian)
11. Rana P, Mohan N, Rajagopal C (2004) Water Res 38:2811-2820. https://doi.org/10.1016/j.watres.2004.02.029
12. Baranova МV, Sharifullina LR (2017) Advances in Chemistry and Chemical Technology [Uspekhi khimii i khimicheskoy tekhnologii] 16:60-62. (In Russian)
13. Tasibekov KhS (2016) Technology for the production of the new polyfunctional carbon-containing materials based on vegetable raw materials in Kazakhstan. Annual report of research work (MSE N0115РК01197). KazNU, Almaty, Kazakhstan. (In Russian)
14. Golovina VV, Еremina АО, Sobolev АА, Chesnokov NV (2017) Journal of Siberian Federal University. Chemistry [Zhurnal Sibirskogo federal’nogo universiteta. Khimiya] 6:191. (In Russian)
Chemical Bulletin of Kazakh National University. 2020; 99: 4-10
Treatment of waste water containing chromium (VI)
https://doi.org/10.15328/cb1113Abstract
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).
References
1. Mamyrbaev AA (2012) Toxicology of chromium and its compounds [Toksikologiya khroma i yego soyedineniy]. Kokzhiek, Aktobe, Kazakhstan. P.7-8. (In Russian)
2. Andreeva NN, Tsvirova AS, Krasyukova VS, Ponomareva NI (2005) Plant laboratory. Diagnostics of materials [Zavodskaya laboratoriya. Diagnostika materialov] 71:11-13. (In Russian)
3. Kokanbaev AK (2013) Surface processes [Bettik qubılıstar]. Almaty, Kazakhstan. ISBN 978-601-80333-5-3. (In Kazakh)
4. Girish K, Mutkhazelvi P (2006) J Anal Chem+ 61:33-36. https://doi.org/10.1134/S1061934806010072
5. GN 2.1.5.2280–07. Maximum permissible concentrations (MPC) of chemicals in water of water objects of economic, drinking, cultural, and household water use. Additions and changes №1 to GN 2.1.5.1315–03. (In Russian)
6. Zlobina E, Daminova A (2013) Extraction of chromium [Ekstraktsiya khroma]. Lambert Academic Publishing, Moscow, Russia. P.10-12. (In Russian)
7. Basargin NN, Oskotskaya ER, Gribanov EN, Rozovskiy YuG (2011) Factory laboratory. Diagnostics of materials [Zavodskaya laboratoriya. Diagnostika materialov] 77:9-11. (In Russian)
8. Anikin VYu, Basargin NN, Kosolapova NI, Rozovskiy YuG (2008) Factory laboratory. Diagnostics of materials [Zavodskaya laboratoriya. Diagnostika materialov] 74:15-19. (In Russian)
9. Suvardhan K, Suresh Kumar K, Rekha D, Kiran K, Jaya Raj B, Chiranjeevi P (2007) Journal of Analytical Chemistry [Zhurnal Analiticheskoi Khimii] 62(4):376-381.
10. Leykin YuA (2015) Physico-Chemical Bases of Polymer Sorbents Synthesis. BINOM, Moscow, Russia. P.15-17. (In Russian)
11. Rana P, Mohan N, Rajagopal C (2004) Water Res 38:2811-2820. https://doi.org/10.1016/j.watres.2004.02.029
12. Baranova MV, Sharifullina LR (2017) Advances in Chemistry and Chemical Technology [Uspekhi khimii i khimicheskoy tekhnologii] 16:60-62. (In Russian)
13. Tasibekov KhS (2016) Technology for the production of the new polyfunctional carbon-containing materials based on vegetable raw materials in Kazakhstan. Annual report of research work (MSE N0115RK01197). KazNU, Almaty, Kazakhstan. (In Russian)
14. Golovina VV, Eremina AO, Sobolev AA, Chesnokov NV (2017) Journal of Siberian Federal University. Chemistry [Zhurnal Sibirskogo federal’nogo universiteta. Khimiya] 6:191. (In Russian)
