Liquid aeration and mixing apparatus float mount for wrap-around hand rail and grating

In combination, a liquid purification apparatus, a floating machinery support, a floor grating coupled to the floating machinery support, and a safety rail coupled to said floor grating,

• (a) said floating machinery support comprising:
• at least one float;
• and
• a float assembly frame coupled with said at least one float;
• (b) said liquid purification apparatus comprising:
• a means to add a treating gas to a liquid directly through a submerged gas outlet;
• (c) said floor grating coupled to the floating machinery support comprising:
• a walkway frame secured to said float assembly frame;
• at least one walkway grating secured to said walkway frame and configured to support a person standing thereupon;
• (d) said safety rail coupled to said floor grating comprising:
• at least one riser;
• and
• at least one riser coupler securing said at least one riser to said at least one walkway grating,
• wherein said walkway grating comprises a horizontal platform and a bridge grating, said bridge grating in a first operative position extending horizontally over said liquid purification apparatus and in a second non-operative position is removed from horizontally over said liquid purification apparatus, and
• wherein said walkway grating further comprises a hinge that couples said bridge grating to said horizontal platform and about which said bridge grating rotates from horizontal to vertical, thereby displacing said rotating bridge grating from said first operative position to said second non-operative position to the side of said liquid purification apparatus.

In combination, an aerator for treatment of a fluid, a floating machinery support, a wrap-around rail, and a floor grating,

• (a) the aerator for treatment of a fluid comprising:
• a motor configured to deliver air to a treatment fluid;
• and
• a blower-assisted impeller aerator and mixer;
• (b) said floating machinery support comprising:
• at least one float configured to suspend said aerator upon said treatment fluid;
• and
• a float assembly frame coupled with said at least one float;
• (c) said wrap-around rail and grating comprising:
• a walkway grating coupled with and suspended upon said float assembly frame;
• and
• a railing coupled with and suspended upon said walkway grating,
• wherein said walkway grating comprises a horizontal platform and a bridge grating, said bridge grating in a first operative position extending horizontally over said blower-assisted impeller aerator and mixer and in a second non-operative position is removed from horizontally over said blower-assisted impeller aerator and mixer, and
• wherein said walkway grating further comprises a hinge that couples said bridge grating to said horizontal platform and about which said bridge grating rotates from horizontal to vertical, thereby displacing said rotating bridge grating from said first operative position to said second non-operative position to the side of said blower-assisted impeller aerator and mixer.