The cesspit septage quality and pollution loads of total nitrogen (TN) and heavy metals (HMs) from 50 cesspits were assessed during various filling periods. The average specific wastewater production, emptied septage and infiltrated septage were 49, 30 and 19 L/c d, respectively. The TN specific loads of septage fractions that were emptied and infiltrated were 8.5 and 3.3 g/c d, respectively. The concentrations of HMs (mg/L) in the septage were Cu (0.24), Ni (0.03), Pb (0.01), Mn (0.47), Fe (12.6), Cr (0.04) and Zn (1.23). The septage content of Cu, Mn and Fe did not comply with the Palestinian regulations for wadi disposal nor effluent reuse in agriculture. The specific TN infiltration from cesspits amounts to 29 kg TN/ha y. There was no relation between the HM and TN content of septage and the desludging frequency. The infiltrated septage contributed to as much as 15% of the total groundwater recharge in the study area. This study confirms that cesspits in Palestine should be replaced with proper wastewater management systems for adequate environmental protection.

在不同的灌装期间，对来自50个污水坑的污水坑分隔质量和总氮（TN）和重金属（HMs）的污染负荷进行了评估。平均废水比重分别为49、30和19 L / cd。倒空和渗透的分离级分的总氮比重分别为8.5和3.3 g / cd。污泥中的HMs（mg / L）浓度为Cu（0.24），Ni（0.03），Pb（0.01），Mn（0.47），Fe（12.6），Cr（0.04）和Zn（1.23）。铜，锰和铁的杂质含量不符合巴勒斯坦关于旱谷处置的规定，也不符合农业废水的再利用。来自污水坑的特定TN入渗量为29 kg TN /公顷。污泥的HM和TN含量与脱泥频率之间没有关系。渗透的隔离物占研究区域总地下水补给量的15％。这项研究证实，应使用适当的废水管理系统代替巴勒斯坦的污水池，以实现充分的环境保护。