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Treatment of acid wastewater with hydrated lime or sodium hydroxide

Established in 2001, Puyang Zhong Yuan Restar Petroleum Equipment Co.,Ltd, “RSD” for short, is Henan’s high-tech enterprise with intellectual property advantages and independent legal person qualification. With registered capital of RMB 50 million, the Company has two subsidiaries-Henan Restar Separation Equipment Technology Co., Ltd We are mainly specialized in R&D, production and service of various intelligent separation and control systems in oil&gas drilling,engineering environmental protection and mining industries.We always take the lead in Chinese market shares of drilling fluid shale shaker for many years. Our products have been exported more than 20 countries and always extensively praised by customers. We are Class I network supplier of Sinopec,CNPC and CNOOC and registered supplier of ONGC, OIL India,KOC. High quality and international standard products make us gain many Large-scale drilling fluids recycling systems for Saudi Aramco and Gazprom projects.

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Treatment of acid wastewater with hydrated lime or sodium hydroxide
IJERPH | Free Full-Text | Preparation Performances and ...
IJERPH | Free Full-Text | Preparation Performances and ...

However, even if the content is relatively low, long-term drinking will accumulate in the body, causing poisoning. The question of how to remove ,heavy metal, ions in ,wastewater, effectively and at the same time realize the ,wastewater, reuse and recycling ,of heavy, metals is the development direction ,of heavy metal wastewater, treatment [88,89].

High Density Sludge (HDS) Process
High Density Sludge (HDS) Process

The dissolution of soluble ,metal, compounds from ore and waste rock as well as the presence of contaminants in industrial process water can result in ,metal, contaminated effluent. These dissolved ions are commonly precipitated using a lime neutralization pr ocess, which produces a low density sludge that is difficult to thicken and filter.

Effect of pH and Temperature on the Biosorption of Heavy ...
Effect of pH and Temperature on the Biosorption of Heavy ...

the most important ,factors influencing, the biosorption process, it influence not only the dissociation of functional groups on the active sites of the biosorbent but also the solution ion chemistry. Different metals show different pH optima for their biosorption. Figure 1 shows % removal ,of heavy, metals Iron and Copper by

Factors influencing the contents of metals and as in soils ...
Factors influencing the contents of metals and as in soils ...

Factors influencing the contents of, metals and as in soils around ,the watershed of Guanting Reservoir, China,. Li Xu Regional Ecological Risk Assessment and Environmental Management Group, State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.

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Road West, North Branch, Jingkai Road, Puyang City