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Treatment of a TPP’s Water from Oil Products with Hydrophobic Carbonate Sludge
Thermal Engineering Pub Date : 2020-09-24 , DOI: 10.1134/s0040601520100080
L. A. Nikolaeva

Abstract

A technology for adsorption treatment of a TPP’s wastewater from oil films and dissolved oil products by developed powdery and granular sorption materials based on carbonate sludge is proposed. Carbonate sludge is an energy waste generated during the preliminary purification of raw water during liming and coagulation. The technological characteristics and the adsorption capacity of the sludge with respect to dissolved and emulsified oil products are determined. To increase the adsorption capacity and wettability by nonpolar compounds, it is proposed to carry out volumetric hydrophobization of carbonate sludge with Silor silicone fluid. Powdered material was obtained by modifying sludge (humidity 3%, particle size dh = 0.01–0.05 mm) with 100% Silor liquid with a volume ratio of solid and liquid phase of 5 : 1 followed by heat treatment at 150°C for 60 min until a constant mass was established. The oil capacity of the material of 0.95 g/g, the contact angle of 115°, and the technological characteristics of the sorption material were determined. For TPPs’ wastewater treatment from oil products, it is proposed to use the material for collecting floating oil films in the sumps of the technological scheme. A technology has been developed for producing granular sorption material: granules formed from carbonate sludge when mixed in a ratio of 1 : 2 with a binder liquid sodium glass are heat treated at 700°C for 60 min, then 5% are impregnated with Silor water emulsion and dried to constant weight. It is proposed to use granular material in technological schemes for the posttreatment of wastewater from dissolved oil products as a load in adsorption filters.



中文翻译:

用疏水性碳酸盐污泥处理石油产品中的TPP水

摘要

提出了一种基于碳酸盐污泥的粉状和颗粒状吸附材料吸附处理TPP废水中油膜和溶解油产品的技术。碳酸盐污泥是在石灰和凝结过程中对原水进行初步净化过程中产生的能源浪费。确定了污泥相对于溶解和乳化油产品的技术特性和吸附能力。为了提高非极性化合物的吸附能力和润湿性,提出了用Silor硅油对碳酸盐污泥进行体积疏水化。通过改性污泥获得粉状物料(湿度3%,粒径d h= 0.01-0.05 mm),固相和液相体积比为5:1的100%Silor液体,然后在150°C热处理60分钟,直到质量稳定。测定了该材料的油容量为0.95g / g,接触角为115°以及该吸附材料的技术特性。对于TPP的油品废水处理,建议在技术方案汇总中使用收集浮油膜的材料。已开发出一种用于生产颗粒状吸附材料的技术:将碳酸盐污泥与粘合剂液体钠玻璃以1:2的比例混合时形成的颗粒,在700°C热处理60分钟,然后将5%的硅油水浸渍乳液并干燥至恒重。

更新日期:2020-09-25
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