improve stability

QSD-Group · Aug 13, 2024 · 16f9fe1 · 16f9fe1
1 parent dcef80a
commit 16f9fe1
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/qsdsan/sanunits/_anaerobic_reactor.py b/qsdsan/sanunits/_anaerobic_reactor.py
@@ -454,7 +454,7 @@ def _init_state(self):
     def _update_state(self):
         y = self._state
         y[-1] = sum(ws.state[-1] for ws in self.ins)
-        # y[y<0] = 0.
+        y[y<1e-16] = 0.
         f_rtn = self._f_retain
         i_mass = self.components.i_mass
         chem_MW = self.components.chem_MW