湖泊等淡水水体,河流,他们的生物多样性正受到工业废水和家庭污水污染的威胁。这项研究的主要目的是评估湿咖啡加工厂的废水对接收河流的物理化学和细菌学特性的影响。研究包括四条河流和选定河流的4个采样点。采用焦点小组讨论和访谈来收集主要数据。结果表明,河流下游水质参数显著,特别是在旱季,BODs范围从45±1到782.6±97克/毫升,COD范围从71±21到1072±183g/ml,电导率范围为75.5±6.6至943±56.3,浊度范围为7±0.43至105±6.2,TDS范围为62±6.4至1059.6±121g/ml,温度范围从20.1到33±1,大肠杆菌形式范围从77±1.1到493±66,大肠杆菌范围从28±1到213±41明显更高,DO范围从2.6±0.15到6.1±0.78g/ml,NH4的范围从1.85±0.4到3.3±0.5g/ml,和pH范围从3.6±0.2到7.3±0.45显著降低。从废水和河流下游部分采集的大多数样品显示出高水平的水污染物,大大高于EEPA对地表水的排放限值。此外,定性数据表明,该社区受到河流气味和颜色变化的影响,皮肤刺激,咖啡加工厂废水导致的人类疟疾病例。因此,咖啡加工厂应在将废水排入河流之前对其进行处理。负责任的政府机构应根据环境安全法规授权咖啡加工厂的活动。
Freshwater bodies such as lakes, rivers, and their biodiversity are being threatened with water pollution from industrial effluents and household sewages. The main objective of this study is to assess the effects of wet coffee processing plants effluent on the physicochemical and bacteriological properties of receiving rivers. Four rivers and 4 sampling points of the selected rivers were included in the study. Focus group discussion and interview were employed to gather primary data. The result showed that parameters of water quality for downstream of the rivers were significant, particularly in the dry season with BODs ranging from 45 ± 1 to 782.6 ± 97 g/ml, COD ranges from 71 ± 21 to 1072 ± 183 g/ml, Conductivity ranges from 75.5 ± 6.6 to 943 ± 56.3, Turbidity ranges from 7 ± 0.43 to 105 ± 6.2, TDS ranges from 62 ± 6.4 to 1059.6 ± 121 g/ml, temperature ranges from 20.1 to 33 ± 1, T. coli form ranges from 77 ± 1.1 to 493 ± 66 and E. coli ranges from 28 ± 1 to 213 ± 41 were significantly higher and DO ranges from 2.6 ± 0.15 to 6.1 ± 0.78 g/ml, NH4 ranges from 1.85 ± 0.4 to 3.3 ± 0.5 g/ml, and pH ranges from 3.6 ± 0.2 to 7.3 ± 0.45 were significantly lower. Most of the samples taken from wastewater and downstream parts of the river showed high level of water contaminants that are significantly greater than the EEPA discharge limits for surface water. Moreover, the qualitative data indicated that the community was affected by bad smell and color change on rivers, skin irritation, malarial
case in human due to coffee processing plant effluents. Therefore, coffee processing plants should treat their effluents before they discharge it into the rivers. Responsible government bodies should authorize activities of coffee processing plants in line with the regulations set for environmental safety.