УДК 67.08

Герайбейли Самира Аслан кызы
Азербайджанский государственный университет нефти и промышленности
старший лаборант

DEVELOPMENT OF RECOVERY TECHNOLOGY BY ADDING A SLAG MIXTURE

Geraybeyli Samira Aslan qizi
Azerbaijan State University Oil and Industry
senior laboratory assistant

Abstract
The main purpose of this article is to develop a technology of recovery, lost their fertility, saline, fossilized, and turned into swamps, soils, by adding a mixture of slag formed during the combustion of solid waste, sludge formed during the development of oil wells, and rich in potassium, potassium-oxide phonolite rock, treated with spent 5-10% НNОз acid. It was found that out of 100 gr. slag formed during the combustion of solid waste, 50-60 g. oilfield slurry with 10-20 g. phonolite rock, it is possible to obtain organo-mineral complex fertilizer enriched with macro-and microelements, especially potassium and nitrogen.

Keywords: concentrate, phonolite rock, phosphorite, slag, sludge


Рубрика: 02.00.00 ХИМИЧЕСКИЕ НАУКИ

Библиографическая ссылка на статью:
Герайбейли С.А.к. Development of recovery technology by adding a slag mixture // Современные научные исследования и инновации. 2021. № 10 [Электронный ресурс]. URL: https://web.snauka.ru/issues/2021/10/96722 (дата обращения: 04.12.2021).

The modern period of production development is characterized by an increasing volume and variety of final and intermediate products, an increase in the volume of natural resources involved in production activities, an increase in the amount and variety of waste discharged into the environment.

The volume of mining in our country is increasing significantly every day. However, only 55-65% of these minerals have been used so far. The rest of the amount in the form of waste remains unused, polluting the atmosphere, hydrosphere and lithosphere [1].

The main directions for the integrated use of minerals and protection of mineral resources. It is known that the protection of mineral resources is understood as scientifically sound rational and careful use of minerals, the most complete technically accessible and economically feasible extraction of them, waste disposal.

The main measures for the protection of mineral resources are based on resource conservation:

- prevention of losses during the extraction, transportation of minerals, during their enrichment and processing, the use of finished products. Significant losses of minerals and environmental damage occur during the development of deposits by underground method.

According to the purpose of minerals, the following types are distinguished:

  • Combustible minerals (oil, natural gas, oil shale, peat, coal).
  • Ores (ores of ferrous, non-ferrous and precious metals).
  • Hydromineral (underground mineral and fresh water).
  • Gemstone raw materials (jasper, rhodonite, agate, etc.).
  • Mining and chemical raw materials (apatite, phosphates, mineral salts, borates, clays, etc.
  • Non-metallic minerals (building materials).

From what has been described, it can be seen that with the improvement of the properties of the mineral lands, it is possible to grow ecologically clean fertile plants, since macro- and microelements are available in the right amount. These minerals are not used, as they contain nutrients in small quantities. On the other hand, despite the use of a large number of machines and mechanisms, as well as labor, minerals are used by 55-65%. The nutrients contained in the used sludge are not used in the required form [2, 3]. If you use them in a complex, then the existing element replaces the missing one. All this will lead to the production of a new product so that the manufactured product will meet the needs of the republic. However, currently the republic needs 160-170 thousand tons of fertilizers and meliorant used to bring the mortgaged lands into use. It is a pity that fertilizers are bought from abroad at an expensive price, and the lack of ameliorant leads to an increase in hectares of inhabited land. Despite all this, most of the nutrient-rich sludge is not used. It remains in the rain and sun becomes unusable, and also violates the ecological balance. Along with these minerals, as well as sludge with large reserves is not used for soil improvement. Therefore, currently in the republic, the development of technologies, such compounds and the expansion of areas of use is of great importance. In this regard, it is relevant. joint use of sludge and minerals.

About drilling mud dumped around drilling rigs continues to be a source of dust – in summer, and in winter the cause of waterlogging, both in mountainous and lowland areas. This causes disturbance of the ecological balance, pollution of habitat, pastures, atmosphere, hydrosphere and lithosphere and is the cause of various diseases. 80-100 m3 of sludge is obtained from each operating well during the period of operation. On the other hand, drilling slurries are distinguished by the presence of numerous macro- and microelements, and can be used in the production of complex fertilizers, meliorants and other modified compounds with plant protection properties. Rational use of cheap and inexhaustible raw materials – waste from various industries is also relevant. Despite the fact that there are stages of invention and materials in the current direction, which show the use in various fields of sludge waste and their solutions obtained from oil drilling [4, 5]. However, the utilization of these inventions and materials is insufficient for the use of the oil industry, in particular drilling sludge. It turns out that this is due to the fact that the soils of the republic always need chemical reclamation of disturbed agricultural lands. Also, at the same time, the use of inexhaustible and cheap waste as the main raw material, polluting the atmosphere, the hydrosphere, the lithosphere, which generally prevents a violation of the ecological balance [6].

The purpose of our research is to develop a technology of compounds that is important in the cultivation of environmentally friendly, more resistant to natural phenomena (cold, heat, wind) plants, increasing the productivity and fertility of stony, sandy, saline and swampy soils, rich in numerous nutrients, macro- and microelements of drilling mud and potassium-containing minerals [7]. This goal is achieved by shifting drilling mud and compounds containing potassium in a ratio of 2,5 ¸ З,5 : 0,3¸ 0,5.

At the same time, materials coming out of oil wells in the form of sludge with the following chemical composition were used (table 1).

 

Table 1. Chemical composition of materials coming out of oil wells in the form of sludge during drilling

Na2O

MgO

Al2O3

SiO2

P2O5

SO3

K2O

CaO

TiO2

MnO

Fe2O3

BaO

X

1

2,3

2,73

12,13

37,85

0,14

5,40

0,97

4,27

0,91

0,052

2,71

15,15

15,15

2

1,84

3,23

13,80

41,90

0,15

2,97

1,29

5,17

0,79

0,058

4,18

5,52

8,20

3

1,70

3.37

14,55

42,09

0.15

2,51

1,26

5,23

0,77

0,059

4.22

4,67

19,10

4

1,64

3,09

8,93

46,87

0,14

5,02

1,04

4,35

0,88

0,053

2,92

9,34

15,70

5

1,80

2,97

9,17

54,85

0,16

1,32

1.54

5,88

0,73

0,058

5,78

2,46

12,30

6

2.12

2,39

10,32

60,05

0,15

0,98

2.10

2,27

0,70

0,039

4,74

1,82

11,76

The Siyazan deposit of the Republic of Azerbaijan was used as compounds containing potassium of the following composition (mass %): Na2O 1.61-2.00; MgO 2.10-2.90; A12O3 9.86-10.50; SiO2 61.50-62.0; P2O5 0.89-1.01; K2O 1.89-3.41; CaO 1.66-1.79; TiO2 0.81-0.93; MnO 0.11-0.13; Fe2O3 1.60-1.70; CT 0.69-0.75; total 99.9-100. Spent phosphoric acid from various industries contains (mass %): H3PO4 10.0-15.0; NO3 5.0-7.0; ZnO 0.3-0.5; MnO 0.10-0.12; the rest is H2O.

Depending on the conditions, the yield of the resulting product with granule sizes of 1-5 mm is 89-94% with the following composition of nutrients (% by weight, part): P2O5 2.5- 3.1; K2O 2.6-3.0; H2O 9.9-10.1; trace elements (Si, Zn, Mg, etc.) – 0.11-0.17 and granule hardness 1.7-2.4 MPa. The meliorant obtained from the screw press consists of (mass. %): P2O5 0.4- 0.6; K2O 0.2-0.3; H2O 2.6-3.1.

After separation of the solid and liquid parts, the amounts of P2O5, K2O were determined in both samples. Si, Zn, Mg and Mn. It was found that, depending on the concentration of acid, the duration of residence of the dilute solution in the reactor and the screw press, about 89-92% of nutrients. Siyazan clay and Darydag water turn into liquid, the rest into solid phases [8].

Analyses of the waste (materials) used and the products obtained were carried out by spectrophotometric, chromatographic, atomic absorption spectrometric (AAS) research methods.

Other experiments were conducted similarly, the remaining 1, with different amounts of components used. The results are shown in table 2.

Table 2. Results with different amounts of components used

 

Materials used

The resulting product

Degree of decomposition

Oil sludge (kg)

Siyazan clay (kg)

Proce-ssed Н3РО4

Darydag water Solid phase (kg)

Liquid phase (kg)

1

100

50

50

20

65

135

92

2

100

50

55

15

60

140

93

3

100

50

60

20

58

152

94

4

100

50

65

25

56

164

95

5

100

55

70

20

67

133

91

6

100

60

75

20

70

130

90

7

100

65

35

20

75

125

88

The proposed method of joint use of drilling slurries, Siyazan Darydag water of Nakhichevan makes it possible:

- to be used for the first time in agriculture and food production;

- plants, inexhaustible reserves of drilling sludge;

- use as a raw material containing potassium, Siyazan clay;

- use as raw materials containing boron, zinc and other trace elements.

Darydag waters of Siyazan;

- for the first time to produce crushing of a mixture of drilling slurries and Siyazan clays

- for the first time to develop a technology for obtaining organic mineral fertilizers and meliorant modified with numerous trace elements using a universal technology based on drilling mud, Siyazan clay, H3RO4 diluted with water Siyazan containing boron.zinc and other trace elements.


References
  1. Azarov V.N., Grachev V.A., Denisov V.V., Pavlikhin G.P. / Industrial ecology: textbook for higher educational institutions of the Ministry of the mod and science of the Russian Federation under total Ed. Vladimir Guteneva. M., Volgograd: Prin Terra, 2009, P.840.
  2. Kalygin V.G. Industrial ecology: /a textbook, a manual for students. Higher. Studies. Institutions, ster. M.: Publishing Center “Academy”, 2007, – p.432.
  3. Grechko A.V. Modern methods of thermal processing of solid household waste. / Prom. Energy, 2006, № 9, pp.102-112.
  4. Babushkin D. A., Kuznetsov A.V. Methods of disposal of oily waste // EI Saving technologies, 2006, №6, pp.217-223.
  5. Ksenzenko, V.I. et al. / General chemical technology and fundamentals of industrial ecology. M.: Kolos, 2003, P.326-343.
  6. Pat. KZ A. 4.24716 the Method of disposal of drill cuttings. 17.10.2011, byull. 10.
  7. Pat. KZ A. 428938. Method of disposal of drilling mud, 15.04.2014, byul. 9.
  8. Pat. RU 2439098. With 2 Method of disposal of drilling sludge, 2.01.2012, byull.


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