SU1551659A1 - Method of removing arsenic compounds from waste water - Google Patents

Method of removing arsenic compounds from waste water Download PDF

Info

Publication number
SU1551659A1
SU1551659A1 SU864140807A SU4140807A SU1551659A1 SU 1551659 A1 SU1551659 A1 SU 1551659A1 SU 864140807 A SU864140807 A SU 864140807A SU 4140807 A SU4140807 A SU 4140807A SU 1551659 A1 SU1551659 A1 SU 1551659A1
Authority
SU
USSR - Soviet Union
Prior art keywords
arsenic compounds
zeolite
wastewater
method
increase
Prior art date
Application number
SU864140807A
Other languages
Russian (ru)
Inventor
Николай Шиоевич Цхакая
Нодар Георгиевич Сихарулидзе
Гурам Георгиевич Нозадзе
Венера Романовна Майсурадзе
Коба Миронович Мчедлишвили
Original Assignee
Производственное объединение "Грузгорнохимпром"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Производственное объединение "Грузгорнохимпром" filed Critical Производственное объединение "Грузгорнохимпром"
Priority to SU864140807A priority Critical patent/SU1551659A1/en
Application granted granted Critical
Publication of SU1551659A1 publication Critical patent/SU1551659A1/en

Links

Abstract

The invention relates to chemical technology and can be used to clean industrial wastewater from arsenic compounds. The purpose of the invention is to increase the degree of wastewater treatment. In order to carry out the method of sewage purification from arsenic compounds, arsenic compounds are adsorbed by natural zeolites modified with salts of divalent manganese or ferric iron at pH 4-6.5 and room temperature. Using the proposed method provides 100% removal of the mouse from wastewater by increasing the sorption capacity of the sorbent with an increase in the service life of the sorbent by more than 50 times. 2 tab.

Description

The invention relates to chemical technology and can be used to clean industrial wastewater from arsenic compounds.

The aim of the invention is to increase the degree of wastewater treatment.

For carrying out the process, the cleaning process from the mouse is carried out by sorption of As on natural zeolites modified with salts of transition elements, for example, divalent manganese or ferric iron at pH 4-6.5, which provides an increase in sorption capacity of the sorbent to 3.82 mg / g at 100% recovery of As from wastewater.

The modification of natural zeolites is carried out as follows.

100 g of natural zeolite (clinoptylolite) are poured with 1 l of 5% MhCl or FeCl3 solution, kept for 1 hour, periodically stirred at 60 ° C, filtered, treated for 1 hour with a 2% solution at room temperature. This process is repeated three times. Then the modified zeolite is washed with distilled water until a negative reaction to the C1-ions and dried at 100-120 ° C for 3 hours.

Example. After 100 g of natural zeolite from the Hekordzul deposit of the Georgian SSR, containing 60% clinoptilolite with a particle size of -1.0 + 0.63 mm modified with manganese or iron salts, a solution containing 20 mg / l of mouse is used in terms of metal mouse j. Linear solution velocity 0.02-0.03 m / s.

ate

0 SP

WITH

The results of the determination of the sorption capacity of the zeolite at 100% purification from As are presented in Table. For comparison, the unmodified zeolite has a sorption capacity., 38 mg As / g of zeolite with a degree of extraction of the mouse from waste water of 45-55%.

In tab. Figure 2 presents comparative data on wastewater treatment from mice on synthetic zeolite, on natural zeolites from the Hekordzula deposit (KlH) and natural zeolites from the Yamagata deposit in Japan (CLA).

As can be seen from the table. 1 and 2, the best results in sewage treatment from arsenic were obtained by purification on natural zeolites modified with manganese and iron at pH 4.6.5.

Using the proposed method of cleaning wastewater from a mouse provides 100% removal of the mouse from wastewater by increasing the sorption capacity of the sorben

one, with the service life of the adsorbent increased by more than 50 times.

Claims (1)

  1. Invention Formula
    A method for purifying wastewater from arsenic compounds, including adsorption on natural zeolite, which is characterized in that, in order to increase the degree of purification, adsorption is carried out at pH 4.0-6.5 on zeolite modified with divalent manganese or trivalent salts. gland.
    Table 1
    - 20
    Sorption capacity, mg As / g zeolite (at 100% recovery) 2.40 Total dynamic capacity, Asol / r zeolite 52.0
    0.04 0.07 0.74 0.19 3.81 3.82
    0.38 0.51 10.9 9.5 13.0 13.2
    Table 2
SU864140807A 1986-10-28 1986-10-28 Method of removing arsenic compounds from waste water SU1551659A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU864140807A SU1551659A1 (en) 1986-10-28 1986-10-28 Method of removing arsenic compounds from waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU864140807A SU1551659A1 (en) 1986-10-28 1986-10-28 Method of removing arsenic compounds from waste water

Publications (1)

Publication Number Publication Date
SU1551659A1 true SU1551659A1 (en) 1990-03-23

Family

ID=21265105

Family Applications (1)

Application Number Title Priority Date Filing Date
SU864140807A SU1551659A1 (en) 1986-10-28 1986-10-28 Method of removing arsenic compounds from waste water

Country Status (1)

Country Link
SU (1) SU1551659A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999050182A1 (en) * 1998-04-01 1999-10-07 Alcan International Limited Water treatment product and method
RU2553890C1 (en) * 2014-07-10 2015-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Волгоградский государственный аграрный университет (ФГБОУ ВПО Волгоградский ГАУ) Method of purifying waste water from ammonium and heavy metal ions
CN104761045A (en) * 2015-03-20 2015-07-08 四川理工学院 Preparation method of modified natural zeolite filling material used for biological filled column
RU2562495C2 (en) * 2013-11-26 2015-09-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Иркутский государственный университет" Method of detoxification of sewage waters, polluted with arsenic salts

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Цхака Н.Ш., Квашали Н.Ф. Японский опыт по использованию природных цеолитов. Мецниереба, 1985. *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999050182A1 (en) * 1998-04-01 1999-10-07 Alcan International Limited Water treatment product and method
RU2562495C2 (en) * 2013-11-26 2015-09-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Иркутский государственный университет" Method of detoxification of sewage waters, polluted with arsenic salts
RU2553890C1 (en) * 2014-07-10 2015-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования Волгоградский государственный аграрный университет (ФГБОУ ВПО Волгоградский ГАУ) Method of purifying waste water from ammonium and heavy metal ions
CN104761045A (en) * 2015-03-20 2015-07-08 四川理工学院 Preparation method of modified natural zeolite filling material used for biological filled column
CN104761045B (en) * 2015-03-20 2018-06-19 四川理工学院 A kind of modified natural zeolite filler preparation method for biologic packing material column

Similar Documents

Publication Publication Date Title
Leung et al. Removal and recovery of heavy metals by bacteria isolated from activated sludge treating industrial effluents and municipal wastewater
Baykal et al. Performance of clinoptilolite alone and in combination with sand filters for the removal of ammonia peaks from domestic wastewater
Santi et al. Reduction of organic pollutants in olive mill wastewater by using different mineral substrates as adsorbents
US3244621A (en) Method of removing organic materials from waste waters
PT2033702E (en) Method for removing mercury from exhaust combustion gases
GB1570807A (en) Process for treating ammonia-containing waste water by oxidation
SE8104809L (en) Seen and anleggning for anaerobic decomposition of organic material
ES2000542A6 (en) Process for separating clarified liquid from a biological mass obtained from the biological purification of waste water.
US20080073271A1 (en) Multistage process for treating water utilizing in one stage magnetic seed to sorb dissolved contaminants, and in another stage utilizing magnetic seed to clarify the water
WO1985004390A1 (en) Process and equipment for removal of suspended material, biogenetic nutrients and dissolved metal compounds from sewage contaminated with organic and/or inorganic substances
GB1402369A (en) Waste-water purification
US4289626A (en) Wastewater treatment
US3770625A (en) Removal of virus from fluids
CN101913676B (en) Method for removing phosphorus in water by utilizing ferric salt-modified eggshells
CN105036495A (en) Method for removing nitrate nitrogen in water through ion exchange and denitrification integration
EP0312958A1 (en) Process for microbiological conversion of sulfur containing pollutants in off gases
US4105545A (en) Process for removing cyanide-containing components from aqueous media
Shetty et al. Biosorption of Cu (II) by metal resistant Pseudomonas sp.
WO2009127887A2 (en) Method and apparatus for sorbent production, primarily for removing arsenic from drinking water
Ruchhoft The possibilities of disposal of radioactive wastes by biological treatment methods
Van der Hoek et al. Biological nitrate removal from ground water by sulphur/limestone denitrification.
US5068036A (en) Activated sludge process with in situ recovery of powdered adsorbent
US3377272A (en) Process for the treatment of waste-containing waters
EP0218066B2 (en) Wastewater purification process
US7300586B2 (en) pH stable activated carbon