An organic acid composition for use in oil industry activities, said composition comprising an arylsulfonic acid in water as well as the use of said composition to perform various operations in the oil industry. There is also disclosed a solid acid composition comprising a corrosion inhibitor ready for dissolution and use.

The invention relates to agriculture and can be used to restore soil fertility. A method for remediation of contaminated lands involves pouring and introducing a bioreagent to a depth into the soil prepared for purification. Remediation is carried out in 2 steps: in the first step, slit-like or round holes are made in the infected area to a depth of 25 cm, poured with water, afterwards, 5-6 hours later, this area is poured with a bioreagent in the form of a humus-containing suspension in an amount of up to 400 g per kg of soil containing strains: Acinetobacter calcoaceticus VKPM-4883, Pseudomonas denitrificans VKPM-4884, Pseudomonas sp. longa. VKPM-4885, Rhodococcus erythropolis in an amount of (6-8).Math.10.sup.9, (3-4).Math.10.sup.9 (2-3).Math.10.sup.9, (1-2).Math.10.sup.9 cells per 1 L of solution, respectively, in the ration, wt % 4.8:2.4:1.7:1.0. In the second step, 8-10 days later, half the initial dose of the concentrate of the humus-containing suspension is introduced. After introduction of the second reduced dose of the humus-containing suspension, watering is continued for 14 days. The distance between the slit-like or round holes is 8-10 cm. The proposed method for remediation of contaminated lands provides for treatment efficiency and a reduction in the degree of decontamination from a high degree of contamination to the MPC (maximum permissible concentration) level, preservation of soil biocenosis and restoration of soil fertility.

The invention relates to agriculture and can be used to restore soil fertility. A method for remediation of contaminated lands involves pouring and introducing a bioreagent to a depth into the soil prepared for purification. Remediation is carried out in 2 steps: in the first step, slit-like or round holes are made in the infected area to a depth of 25 cm, poured with water, afterwards, 5-6 hours later, this area is poured with a bioreagent in the form of a humus-containing suspension in an amount of up to 400 g per kg of soil containing strains: Acinetobacter calcoaceticus VKPM-4883, Pseudomonas denitrificans VKPM-4884, Pseudomonas sp. longa. VKPM-4885, Rhodococcus erythropolis in an amount of (6-8).Math.10.sup.9, (3-4).Math.10.sup.9 (2-3).Math.10.sup.9, (1-2).Math.10.sup.9 cells per 1 L of solution, respectively, in the ration, wt % 4.8:2.4:1.7:1.0. In the second step, 8-10 days later, half the initial dose of the concentrate of the humus-containing suspension is introduced. After introduction of the second reduced dose of the humus-containing suspension, watering is continued for 14 days. The distance between the slit-like or round holes is 8-10 cm. The proposed method for remediation of contaminated lands provides for treatment efficiency and a reduction in the degree of decontamination from a high degree of contamination to the MPC (maximum permissible concentration) level, preservation of soil biocenosis and restoration of soil fertility.

The present invention relates to a liquid-state temporary reinforcing material, a preparation method therefor and an application thereof. The liquid-state temporary reinforcing material comprises a reinforcing material and a crystallization inhibitor; the reinforcing material is selected from molecules of any two or more of menthol, menthone, menthol ester and menthol ether, and the content of the crystallization inhibitor is less than 50 ppm. For the liquid-state temporary reinforcing material of the present invention, the menthol and the derivatives of the liquid-state temporary reinforcing material are integrally mixed together to form the composite material for temporary reinforcing, the composite material being liquid and volatilization-controllable at room temperature. Thus, the temporary reinforcing requirements for extracting cultural relics at an archaeology excavation site may be met, and the material is convenient to use.

Methods of extending a period of increased soil nitrogen levels in a soil are described. The methods include applying a soil enhancement agent to the soil, where the soil enhancement agent may include one or both of (i) lactobionic acid, and (ii) a least one salt of lactobionic acid. The methods also include applying a nitrogen-containing fertilizer to the soil. The soil treated with both the soil enhancement agent and the nitrogen-containing fertilizer has a higher level of soil nitrogen for at least a portion of a grown cycle of a crop planted in the soil than the same soil treated without the soil enhancement agent during the growing cycle of the crop.

Methods of extending a period of increased soil nitrogen levels in a soil are described. The methods include applying a soil enhancement agent to the soil, where the soil enhancement agent may include one or both of (i) lactobionic acid, and (ii) a least one salt of lactobionic acid. The methods also include applying a nitrogen-containing fertilizer to the soil. The soil treated with both the soil enhancement agent and the nitrogen-containing fertilizer has a higher level of soil nitrogen for at least a portion of a grown cycle of a crop planted in the soil than the same soil treated without the soil enhancement agent during the growing cycle of the crop.

Treat an aggregation of particulates with two different aqueous mixtures, first with an aqueous mixture containing a sulfonated aromatic polymer component and then with an aqueous mixture containing polyethylene oxide.

Treat an aggregation of particulates with two different aqueous mixtures, first with an aqueous mixture containing a sulfonated aromatic polymer component and then with an aqueous mixture containing polyethylene oxide.

An aqueous composition which contains (a) one or more alkyl glucamides of the formula (I), wherein R1 represents a linear or branched alkyl group having 5 to 9 carbon atoms, R2 represents an alkyl group having 1 to 3 carbon atoms, and (b) water, is suitable for improving soil humidification.

##STR00001##

An aqueous composition which contains (a) one or more alkyl glucamides of the formula (I), wherein R1 represents a linear or branched alkyl group having 5 to 9 carbon atoms, R2 represents an alkyl group having 1 to 3 carbon atoms, and (b) water, is suitable for improving soil humidification.

##STR00001##