干旱区生态环境知识资源中心(Arid): Recycling produced water for algal cultivation for biofuels

Arid

DOI	10.2172/1048383
报告编号	LA-UR-12-23976
来源ID	OSTI_ID: 1048383
	Recycling produced water for algal cultivation for biofuels
	Neal, Justin N. [Los Alamos National Laboratory]; Sullivan, Enid J. [Los Alamos National Laboratory]; Dean, Cynthia A. [Los Alamos National Laboratory]; Steichen, Seth A. [Los Alamos National Laboratory]
英文摘要	Algal growth demands a continuous source of water of appropriate salinity and nutritional content. Fresh water sources are scarce in the deserts of the Southwestern United States, hence, salt water algae species are being investigated as a renewable biofuel source. The use of produced water from oil wells (PW) could offset the demand for fresh water in cultivation. Produced water can contain various concentrations of dissolved solids, metals and organic contaminants and often requires treatment beyond oil/water separation to make it suitable for algae cultivation. The produced water used in this study was taken from an oil well in Jal, New Mexico. An F/2-Si (minus silica) growth media commonly used to cultivate Nannochloropsis salina 1776 (NS 1776) was prepared using the produced water (F/2-Si PW) taking into account the metals and salts already present in the water. NS 1776 was seeded into a bioreactor containing 5L of the (F/2-Si PW) media. After eleven days the optical density at 750 nm (an indicator of algal growth) increased from 0 to 2.52. These results indicate algae are able to grow, though inhibited when compared with non-PW media, in the complex chemical conditions found in produced water. Savings from using nutrients present in the PW, such as P, K, and HCO{sub 3}{sup -}, results in a 44.38% cost savings over fresh water to mix the F/2-Si media.
出版年	2012
报告类型	Technical Report
语种	英语
国家	美国
来源学科分类	02 PETROLEUM ; 09 BIOMASS FUELS ; 59 BASIC BIOLOGICAL SCIENCES ; ALGAE ; BIOFUELS ; BIOREACTORS ; CULTIVATION ; FRESH WATER ; NUTRIENTS ; OIL WELLS ; OPACITY ; RECYCLING ; SALINITY ; SILICA ; SOLUTES ; WATER
URL	http://www.osti.gov/scitech/servlets/purl/1048383
资源类型	科技报告
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/270534
推荐引用方式 GB/T 7714	Neal, Justin N. [Los Alamos National Laboratory],Sullivan, Enid J. [Los Alamos National Laboratory],Dean, Cynthia A. [Los Alamos National Laboratory],et al. Recycling produced water for algal cultivation for biofuels,2012.