## 3 Results
### Temperature and Wastewater Treatment Parameters  
The values for each wastewater parameter shown in Tables 2 and 3 are discussed below in relation to the temperature. A moderate positive correlation (r = 0.588, \(p\) = 0.045) was observed between the temperature and the incoming pH (Average pH In), suggesting that higher temperatures are associated with slightly higher pH levels in the incoming water. On the other hand, a very strong positive correlation (r = 0.887, \(p\) = 0.002) was found between the temperature and the outflow pH (Average pH Out), indicating that, as the temperature increases, the pH of the outflow water rises significantly.  
The temperature exhibited a weak negative correlation (r = \(-\)0.384, \(p\) = 0.091) with the total phosphorus concentrations in the incoming water (Average P Tot In), suggesting that higher temperatures tend to slightly reduce the phosphorus concentrations in the incoming water. The correlation between the temperature and phosphorus level in the outgoing water (Average P Tot Out) was very weakly negative (r = \(-\)0.007, \(p\) = 0.968), implying that temperature has little to no effect on the phosphorus levels in the effluent.  
A weak negative correlation (r = \(-\)0.224, \(p\) = 0.341) was found between the temperature and the chemical oxygen demand (COD) in the incoming water (Average COD In), suggesting that temperature changes have only a small influence on the COD levels in the incoming water. However, a moderate negative correlation (r = \(-\)0.523, \(p\) = 0.018) was observed between the temperature and COD in the outflow water (Average COD Out), suggesting that warmer temperatures tend to lower the COD levels in the effluent.  
The correlation between the temperature and biological oxygen demand (BOD\({}_{5}\)) in the incoming wastewater (Average BOD\({}_{5}\) In) was weakly negative (r = \(-\)0.381, \(p\) = 0.063), indicating that the temperature has a slight cooling effect on the BOD\({}_{5}\) levels in the incoming wastewater. A weak negative correlation (r = \(-\)0.314, \(p\) = 0.154) was found between the temperature and BOD\({}_{5}\) in the outgoing water (Average BOD\({}_{5}\) Out), reflecting a slight reduction in the BOD\({}_{5}\) levels in the effluent with higher temperatures.  
For the amount of total suspended solids (TSSs) in the incoming water (Average TSSs In), a weak positive correlation (r = 0.310, \(p\) = 0.195) was observed, suggesting that higher temperatures may slightly increase the concentration of TSSs in the incoming water. In contrast, a very weak positive correlation (r = 0.179, \(p\) = 0.481) was found between the temperature and TSSs in the outflow water (Average TSSs Out), indicating that the temperature has a very minor positive effect on the TSS levels in the effluent.  
The temperature showed a strong negative correlation (r = \(-\)0.763, \(p\) = 0.001) with the nitrogen concentrations in the incoming water (Average N-Total In), suggesting that warmer temperatures significantly reduce the nitrogen concentrations in the incoming water. Similarly, a strong negative correlation (r = \(-\)0.63, \(p\) = 0.009) was found between the temperature and nitrogen levels in the outgoing water (Average N-Total Out), indicating that higher temperatures significantly lower the nitrogen concentrations in the effluent.  
Lastly, the temperature exhibited a strong negative correlation (r = \(-\)0.748, \(p\) = 0.003) with the ammonium concentrations in the incoming water (Average NH\({}_{4}\) In), demonstrating that the temperature has a strong influence on the ammonium concentrations, reducing them under warmer conditions.  
Note: the correlation analysis excludes the average ammonia concentrations in effluent due to zero variance, limiting its applicability in assessing treatment efficiency.