热带农业科学
熱帶農業科學
열대농업과학
CHINESE JOURNAL OF TROPICAL AGRICULTURE
2012年
4期
62-66
,共5页
张旭%刘坤%黄亚文%唐文浩%徐浩%肖湘波
張旭%劉坤%黃亞文%唐文浩%徐浩%肖湘波
장욱%류곤%황아문%당문호%서호%초상파
制胶废水%废水回用%土壤理化性
製膠廢水%廢水迴用%土壤理化性
제효폐수%폐수회용%토양이화성
rubber wastewater%wastewater reuse%soil physicochemical properties
利用干湿循环试验模拟不同浓度制胶废水直接施用于土壤.试验结果显示中低浓度制胶废水直接施用.在施用初期土壤容重平均降低了1.91%.最大持水量、毛管持水量和最小持水量分别提高了15.84%、21.29%和45.07%.水稳性团聚体提高在35%以上,对土壤理化性质调控作用显著,后期随着施用次数的增加调控作用降低。高浓度制胶废水在施用过程中土壤容重升高.持水量降低,土壤结构被破坏。说明将高浓度制胶废水直接施用会堵塞土壤孔隙,使土壤板结,土地无法耕种,而将制胶废水浓度降低后短期施用,能有效改良土壤结构,成为制胶废水农田回用的新思路。
利用榦濕循環試驗模擬不同濃度製膠廢水直接施用于土壤.試驗結果顯示中低濃度製膠廢水直接施用.在施用初期土壤容重平均降低瞭1.91%.最大持水量、毛管持水量和最小持水量分彆提高瞭15.84%、21.29%和45.07%.水穩性糰聚體提高在35%以上,對土壤理化性質調控作用顯著,後期隨著施用次數的增加調控作用降低。高濃度製膠廢水在施用過程中土壤容重升高.持水量降低,土壤結構被破壞。說明將高濃度製膠廢水直接施用會堵塞土壤孔隙,使土壤闆結,土地無法耕種,而將製膠廢水濃度降低後短期施用,能有效改良土壤結構,成為製膠廢水農田迴用的新思路。
이용간습순배시험모의불동농도제효폐수직접시용우토양.시험결과현시중저농도제효폐수직접시용.재시용초기토양용중평균강저료1.91%.최대지수량、모관지수량화최소지수량분별제고료15.84%、21.29%화45.07%.수은성단취체제고재35%이상,대토양이화성질조공작용현저,후기수착시용차수적증가조공작용강저。고농도제효폐수재시용과정중토양용중승고.지수량강저,토양결구피파배。설명장고농도제효폐수직접시용회도새토양공극,사토양판결,토지무법경충,이장제효폐수농도강저후단기시용,능유효개량토양결구,성위제효폐수농전회용적신사로。
As a kind of non-toxic, harmful, resource utilization wastewater, the rubber wastewater had become feasible in reused in farmland. The simulation experiment had directly irrigated different concentrations of rubber wastewater in the soil by using dry wet cycle. The results showed that the early soil physicochemical properties were significantly affected by directly irrigated mid-low concentration of rubber wastewater. The soil bulk density was average reduced by 1.91%; the maximum, hollow billet and minimum capacity had increased by 15.84%, 21.29%, 45.07%; water stability reunion body has increased more than 35%, but the regulation function had reduced within the number of irrigation increased. What's more, by irrigated high concentration of rubber wastewater, the soil bulk density had increased, the water capacity had become lower, the soil structure had been destroyed. To sum up, directly irrigate high concentration of rubber wastewater in the soil would jam soil pore, make the soil harden and couldn't be farmed. Instead, the soil structure could be effectively improved in a short-term irrigation by reducing the concentration of rubber wastewater. Thus, rubber wastewater reused in farmland would become a new idea.