Pretreated cheese whey wastewater management by agricultural reuse: chemical characterization and response of tomato plants Lycopersicon esculentum Mill. under salinity conditions.
Pretreated cheese whey wastewater management by agricultural reuse: chemical characterization and response of tomato plants Lycopersicon esculentum Mill. under salinity conditions.
复制标题
DOI：
10.1016/j.scitotenv.2013.06.080
复制
发表时间：
2013-10
期刊：
影响因子：
--
通讯作者：
A. Prazeres;F. Carvalho;J. Rivas;M. Patanita;J. Dôres
中科院分区：
文献类型：
--
作者：
A. Prazeres;F. Carvalho;J. Rivas;M. Patanita;J. Dôres
对奶酪生产产生的预处理工业废水进行农业回用是其处理和管理的合适选择。从经济和污染控制的角度来看，这种替代方案具有诱人的优势。预处理奶酪乳清废水具有较高的可生物降解有机质、盐度和营养成分含量，是植物耐盐性中高的重要发育因子。5种不同的预处理CWW处理（1.75 ~ 10.02 dS m−1）分别应用于番茄植株生长。淡水作为对照（平均盐度= 1.44 dS m−1）。对叶、茎、根的化学性质和指示剂配比进行了监测。两个品种（Roma和里约热内卢Grande）叶片钠钾浓度随盐度水平呈线性增加。茎中的钠含量也有类似的结果。然而，有毒的钠积累在cv。Roma超过了cv中获得的值。里约热内卢格兰德。在最后一种情况下，钾和钙的吸收、运输和积累能力被认为是组织渗透电位调节和离子中和的耐受机制。因此，Na/Ca和Na/K比值在cv中呈现较低的值。里约热内卢格兰德。不同品种的叶片和茎中Na/Ca比值随盐度水平呈线性增加。对于Na/K比值，这些值显示了cv中离子之间的竞争现象。里约热内卢格兰德。尽管CWW的氯化物含量很高，但在叶片和茎中没有观察到显著差异。因此，NO3−/Cl−的相互作用没有证明氮缺乏。氮也有助于维持组织和土壤之间的水位差。Na、P、Cl和N根浓度在高盐度（≥2.22 dS m−1）条件下最大。
The agricultural reuse of pretreated industrial wastewater resulting from cheese manufacture is shown as a suitable option for its disposal and management. This alternative presents attractive advantages from the economic and pollution control viewpoints. Pretreated cheese whey wastewater (CWW) has high contents of biodegradable organic matter, salinity and nutrients, which are essential development factors for plants with moderate to elevated salinity tolerance. Five different pretreated CWW treatments (1.75 to 10.02 dS m− 1) have been applied in the tomato plant growth. Fresh water was used as a control run (average salinity level = 1.44 dS m− 1). Chemical characterization and indicator ratios of the leaves, stems and roots were monitored. The sodium and potassium leaf concentrations increased linearly with the salinity level in both cultivars, Roma and Rio Grande. Similar results were found in the stem sodium content. However, the toxic sodium accumulations in the cv. Roma exceeded the values obtained in the cv. Rio Grande. In this last situation, K and Ca uptake, absorption, transport and accumulation capacities were presented as tolerance mechanisms for the osmotic potential regulation of the tissues and for the ion neutralization. Consequently, Na/Ca and Na/K ratios presented lower values in the cv. Rio Grande. Na/Ca ratio increased linearly with the salinity level in leaves and stems, regardless of the cultivar. Regarding the Na/K ratio, the values demonstrated competition phenomena between the ions for the cv. Rio Grande. Despite the high chloride content of the CWW, no significant differences were observed for this nutrient in the leaves and stems. Thus, no nitrogen deficiency was demonstrated by the interaction NO3−/Cl−. Nitrogen also contributes to maintain the water potential difference between the tissues and the soil. Na, P, Cl and N radicular concentrations were maximized for high salinity levels (≥ 2.22 dS m− 1) of the pretreated CWW.