diff --git a/exercises/exercise-biomineralization/README.md b/exercises/exercise-biomineralization/README.md
index 1cb9bc4a7bdb3b1c4d33d00dd2b3edb4c7ac67dd..84eab8535c00aa6e321d9d3b6f457498d704980b 100644
--- a/exercises/exercise-biomineralization/README.md
+++ b/exercises/exercise-biomineralization/README.md
@@ -1,6 +1,6 @@
 # Exercise Biomineralization
 
-The aim of this exercise is to get a first glimpse with the _DuMuX_ way of implementing mineralization and reaction processes. In the scope of this exercise, the setting of boundary conditions is revisited and a new reaction term is implemented.
+The aim of this exercise is to get a first glimpse at the _DuMuX_ way of implementing mineralization and reaction processes. In the scope of this exercise, the setting of boundary conditions is revisited and a new reaction term is implemented.
 
 ## Problem set-up
 
diff --git a/exercises/exercise-biomineralization/chemistry/simplebiominreactions.hh b/exercises/exercise-biomineralization/chemistry/simplebiominreactions.hh
index 4680466236d7f37b6c625572390e6fde46c2b651..fff7201abdffedb149802d904e7b2377bb5dd750 100644
--- a/exercises/exercise-biomineralization/chemistry/simplebiominreactions.hh
+++ b/exercises/exercise-biomineralization/chemistry/simplebiominreactions.hh
@@ -19,8 +19,7 @@
 /*!
  * \file
  * \ingroup Chemistry
- * \brief The source and sink terms due to reactions are calculated in this class. The chemical functions and derivations are implemented in the private part of
- * class.
+ * \brief The source and sink terms due to reactions are calculated in this class.
  */
 #ifndef DUMUX_BIOMIN_REACTIONS_HH
 #define DUMUX_BIOMIN_REACTIONS_HH
@@ -29,8 +28,7 @@ namespace Dumux {
 
 /*!
  * \ingroup Chemistry
- * \brief The source and sink terms due to reactions are calculated in this class. The chemical functions and derivations are implemented in the private part of
- * class.
+ * \brief The source and sink terms due to reactions are calculated in this class.
  */
 template <class TypeTag>
 class SimpleBiominReactions
diff --git a/exercises/exercise-biomineralization/components/biofilm.hh b/exercises/exercise-biomineralization/components/biofilm.hh
index 07a7f3670958d24788965dfb4a6cc71c4f5abd72..c3348a092628269aeb7d4c9b48d9d6bcd09f51eb 100644
--- a/exercises/exercise-biomineralization/components/biofilm.hh
+++ b/exercises/exercise-biomineralization/components/biofilm.hh
@@ -19,7 +19,7 @@
 /*!
  * \file
  * \ingroup Components
- * \brief A class for the biofilm solid phase properties.
+ * \brief A class for the biofilm solid component properties.
  */
 #ifndef DUMUX_BIOFILM_HH
 #define DUMUX_BIOFILM_HH
@@ -32,7 +32,7 @@ namespace Components {
 
 /*!
  * \ingroup Components
- * \brief A class for the biofilm solid phase properties.
+ * \brief A class for the biofilm solid component properties.
  */
 template <class Scalar>
 class Biofilm
@@ -74,4 +74,4 @@ public:
 } // end namespace Components
 } // end namespace Dumux
 
-#endif
\ No newline at end of file
+#endif
diff --git a/exercises/exercise-biomineralization/fluidsystems/biomin.hh b/exercises/exercise-biomineralization/fluidsystems/biomin.hh
index 35320d8e03aba30d95ff3e8baf5619e700066498..6f4be1e8b8343ef6b04a8dfd9af807bab4ce4a25 100644
--- a/exercises/exercise-biomineralization/fluidsystems/biomin.hh
+++ b/exercises/exercise-biomineralization/fluidsystems/biomin.hh
@@ -41,13 +41,12 @@
 
 namespace Dumux {
 namespace FluidSystems {
-    
+
 /*!
  * \ingroup Fluidsystems
  * \brief A compositional fluid with brine and carbon dioxide as
  *        components in both, the liquid and the gas (supercritical) phase,
- *        additional biomineralisation components and the solid phases
- *        biofilm and calcite.
+ *        additional biomineralisation components (Ca and Urea) in the liquid phase
  *
  * This class provides acess to the Bio fluid system when no property system is used.
  * For Dumux users, using BioMinFluid<TypeTag> and the documentation therein is
diff --git a/exercises/exercise-biomineralization/solidsystems/biominsolidphase.hh b/exercises/exercise-biomineralization/solidsystems/biominsolidphase.hh
index 7f28853e13186d54cae6276cdfbf65b56710ed9e..b74567665f787c46d733426296c43ddfb2481435 100644
--- a/exercises/exercise-biomineralization/solidsystems/biominsolidphase.hh
+++ b/exercises/exercise-biomineralization/solidsystems/biominsolidphase.hh
@@ -36,7 +36,7 @@ namespace SolidSystems {
 
 /*!
  * \ingroup SolidSystems
- * \brief A solid phase consisting of a single inert solid component
+ * \brief A solid phase consisting of a single inert solid component and two reactive solid components
  * \note a solid is considered inert if it can't dissolve in a liquid and
  *       and can't increase its mass by precipitation from a fluid phase.
  * \note inert components have to come after all non-inert components