Research progress of wastewater processed by microalgae

doi:10.3969/j.issn.1674-1951.2021.12.002

Abstract

Abstract:

Nourishing heterotrophic microalgae by various nutrients in wastewater can remove nutrients and metal elements from wastewater,and produce biofuels,bioactive substances,feed additives and other beneficial ingredients at the same time.It is a biotechnological platform coupling wastewater purification and biomass production,which is both profitable and sustainable.However,different climatic conditions and wastewater composition have posed problems on the large-scale cultivation of microalgae.Recent domestic and international researches on microalgae culture by eutrophic wastewater described the influence of different wastewater characteristics on microalgae growth,and provided solutions for the nutrient deficiency,substrate inhibition,toxicity and co-existing microorganisms existing in microalgae culture in wastewater.

Key words: wastewater treatment, microalgae, biomass production, nutrients, microbial inhibition, suspended matter

CLC Number:

X52：TK09

CUI Yuanjie, ZHANG Hongbing, HE Heng, CHEN Tiejun, GUO Fan. Research progress of wastewater processed by microalgae[J]. Huadian Technology, 2021, 43(12): 10-16.

Figures/Tables 4

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类型	来源	氮/(mg·L^-1)				磷/(mg·L^-1)		碳/(mg·L^-1)
类型	来源	NO₃-N	NH₄-N	TKN	TN	PO₄-P	TP	COD	TOC
工业废水	酿酒厂	2.0~11.0	3.0~106.0	—	—		57.0~326.0	565.0~7 837.0	—
	地毯厂	0~28.0	18.0~26.0	—	—	20.0~35.0	—	1 412.0	—
	乳品厂	<1.0	120.0~350.0	—	—	—	35.0~350.0	2 000.0~20 213.0	—
	石油、金属和化工	1.9	1.1	—	—	—	—	1 200.0	—
	仪表厂	—	67.0	128.6	—	—	120.6	—	—
	淀粉厂	—	49.0~115.0	—	—	—	50.0~385.0	2 470.0~15 440.0	—
	木材制浆造纸	—	—	—	—	—	—	1 248.0	—
农业废水	马铃薯加工	54.0	12.0	—	—	48.0	—	745.0	—
农业废水	稻米加工	—	—	—	25.0~95.0	12.0~94.0	—	2 578.0~6 480.0	—
城市废水	生活废水	—	25.0~66.0	—	—	7.0~12.0	—	400.0~500.0	—
	垃圾渗滤液	—	112.0~192.0	—	—	7.0~9.0	—	3 725.0~4 861.0	—
	下水道污水	1.0	23.0~219.0	—	—	1.0~12.0	—	183.0~380.0	—
厌氧消化废水	养牛场粪便	<1.0	1 279.0~1 961.0	—	—	—	240.0	4 855.0~4 945.0	—
	城镇废水	—	646.0	—	—	101.0	—	—	76.0
	猪舍粪便	—	324.0~656.0	—	—	117.0	—	—	1 247.0

来源	COD/(mg·L^-1)	BOD/(mg·L^-1)	TOC/(mg·L^-1)	NH₄-N/(mg·L^-1)	TN/(mg·L^-1)	TP/(mg·L^-1)	TSS/(mg·L^-1)	pH值
钢铁工业	150.00~ 6 000.00	—	—	10.00~300.00	7.00~8.00	—	500.00~ 2 500.00	7.00~8.00
医药化工	240.00~ 35 600.00	800.00~ 114 000.00	—	<0.20	5.25~ 7 500.00	89.00~ 4 200.00	0.06~1679.00	<1.00~6.70
纺织工业	728.00~ 6 000.00	250.00~ 700.00	90.60~108.00	4.80~100.00	21.00~57.00	0.83~120.00	16.00~46.00	7.80~10.40
采矿	—	—	27.30	—	0.20	0.23	—	4.20
橄榄油磨坊	—	—	26 460.00~ 32 680.00	—	410.00~ 1 020.00	30.00~ 1 000.00	41 900.00~ 54 760.00	4.90~5.10
食品加工	440.00~ 3 500.00	132.00~ 16 000.00	—	—	5.70~9.50	4.00~57.30	2.43~ 13 300.00	6.35~7.00
皮革加工	16 000.00	5 000.00	—	450.00	273.00	21.00	—	—
地毯制造	106.00~1 412.00	2.00~487.00	—	0.57~25.85	—	3.47~13.83	4.00~268.00	6.50~8.00
制浆造纸	1 120.00~ 1 160.00	200.00~ 210.00	—	—	—	—	80.00~90.00	5.50~6.80
乳品业	10 251.20	4 840.60	—	—	663.00	153.60	5 802.60	8.34
制糖业	1 360.00~ 2 000.00	300.00~ 2 200.00	—	—	—	—	220.00~ 790.00	6.50~8.80

参数	数值	参数	数值
COD/(g·m^-3)	300.0~900.0	铝/(mg·m^-3)	350.0~1 000.0
BOD/(g·m^-3)	140.0~350.0	镉/(mg·m^-3)	1.0~4.0
TN/(g·m^-3)	30.0~100.0	铬/(mg·m^-3)	10.0~25.0
NH₄-N/(g·m^-3)	20.0~75.0	铜/(mg·m^-3)	30.0~70.0
NO₃-N+NO₂-N/ (g·m^-3)	0.1~0.5	铅/(mg·m^-3)	25.0~80.0
DON/(g·m^-3)	10.0~25.0	汞/(mg·m^-3)	1.0~3.0
TKN/(g·m^-3)	30.0~100.0	TSS/(g·m^-3)	250.0~600.0
TP/(g·m^-3)	6.0~25.0	VSS/(g·m^-3)	200.0~480.0
PO₄-P/(g·m^-3)	4.0~15.0	pH值	7~8
DOP/(g·m^-3)	2.0~10.0