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Determination of ammonia nitrogen in acid wastewater by Haxi reagent

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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Determination of ammonia nitrogen in acid wastewater by Haxi reagent
Phytostabilization of Mine Tailings in Arid and Semiarid ...
Phytostabilization of Mine Tailings in Arid and Semiarid ...

Mine, tailings disposal sites from either inactive or abandoned ,mine, sites are prevalent in arid and semiarid regions throughout the world. Major areas include northern Mexico and the Western United States, the Pacific coast of South America (Chile and Peru), southwestern Spain, western India, South Africa, and Australia (Munshower 1994; Tordoff et al. 2000).

Soil Reclamation of Abandoned Mine Lands by Revegetation ...
Soil Reclamation of Abandoned Mine Lands by Revegetation ...

Mining activities for mineral resources over the years have resulted in major soil damage. Due the removal process of desired mineral materials, soil textures have been destroyed, various nutrient cycles have been disturbed, and microbial communities have been altered, affecting vegetation and leading to the destruction of wide areas of land in many countries.

American Society of Reclamation Science > Publications ...
American Society of Reclamation Science > Publications ...

Ecosystem ,Restoration,: A Critical Component of Sustainable Mining and Reclamation J. Burger p 72. OSM Stream. Stream ,Restoration,: A Reassessment of Long Term Performance J. Nawrot, K. Williard, B. Borries, D. Roseboom, T. Straub p 392. Stream ,Restoration, at Midwest Surface ,Coal, Mines - Keys to Success R. Williams p 538. Lessons Learned from a ...

Restoration/reclamation | Coyote Gulch
Restoration/reclamation | Coyote Gulch

There’s also a lot of existing ,acid mine, drainage across ,coal,-mining communities, ... such as ,wastewater,-treatment plants, to make costly upgrades to comply with new limits. ... Open Space and Trails staff identified the North Star fen as a site for ,ecological restoration,. Situated in …

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